HotPDF Opombe ob izdaji

Version 2.748.6

Fixed

• Popravljeno vrtenje podrazdelka cross-reference, ki naznanja več vnosov, kot jih ima tabela, skozi celotno naznanjeno število, čeprav za branje ni več podatkov, zaradi česar je zavražanje pokvarjene datoteke s štiridesetimi bajti trajalo desetke sekund
• Popravljeno izgubljanje vseh že izdelanih rezultatov pri job runnerju, ko operacija sproži izjemo, ter izgubljanje slikovnega objekta pri uvažanju HTML, ko streama okoli njega ni bilo mogoče ustvariti

Version 2.748.5

Fixed

• Popravljeno odpiranje datotek PKCS#12 z geslom, ki ni ASCII: geslo je niz bajtov UTF-8, a je bilo razširjano bajt za bajtom namesto da bi bilo dekodirano, zato je bil izpeljan ključ napačen za vsak znak zunaj ASCII. Datoteke, zaščitene s sodobno shemo PBES2, niso bile prizadete, od tod različno obnašanje obeh
• Popravljeno sprožanje access violationa namesto lastne napake pri signature batch validatorju in predpomnilniku revocation evidence, ko sta zgrajena z neveljavno možnostjo, ker se je destruktor izvedel še preden so bili ustvarjeni člani, ki jih sprošča
• Popravljeno podirjanje naloge za prenos evidence v destruktorju, ko so bili njeni argumenti zavrnjeni, ker so se preverjanja izvedla še preden je bila ustvarjena sama nit
• Popravljeno kodiranje identifikatorja algoritma pri ponudniku cloud-signature, kadar drugi lok identifikatorja preseže 39; nepravilen identifikator zdaj sproži lastno napako ponudnika namesto napake pretvorbe
• Vsebniki certifikatov in podpisov zdaj zavrnejo gnezdeni element, ki naznanja dolžino, segajočo čez element, ki ga vsebuje, tako da tisto, kar se preverja, in tisto, kar pokriva podpis, ne moreta več biti različna
• Vrednosti zasebnega ključa se po podpisovanju RSA izbrišejo iz pomnilnika, namesto da ostanejo na kopici za naslednjo dodelitev

Version 2.748.4

Fixed

• Popravljeno nalaganje pisav Type 1, ki je bralo vse lastnosti iz prve vrstice programa pisave: seznam žetonov je bil dopolnjen brez izpraznitve, zato so bili nizi za različico, družino in težo, stem hints ter dolžina charstring ključa vzeti iz zastarelih žetonov. Pisave Type 1 zdaj poročajo svoje metapodatke
• Popravljeno hranjenje dolžine charstring ključa kot kazalca v niz, ki je bil že sproščen, in uporaba brez preverjanja obsega; zdaj se hrani kot vrednost in omeji na obseg, ki ga dovoljuje format
• Popravljeno vračanje nevdrtih pisav vedno na privzeto pisavo sistema: ime zahtevane pisave je bilo kopirano v zapis pisave s širokimi znaki bajt za bajtom, zato se nobena nameščena družina ni nikoli ujela
• Popravljeno branje čez konec prirezanega programa pisave pri razčlenjevanju vgrajenih pisav TrueType in OpenType med dekodiranjem obrisev glifov, argumentov sestavljenih glifov in tabele CFF vsebnika OpenType, nepravilna preslikava znakov pa ne zahteva več negativnega polja glifov
• Popravljeno prelivanje naznanjenih številk objektov pri tabelah cross-reference in tokovih: vnos, ki trdi številko blizu meje celih števil, se je zvil v negativni indeks in bil zapisan zunaj tabele, naznanjeno število objektov ali /Size, veliko večje, kot ga datoteka lahko nosi, pa je polja nalagalnika razmerilo samo po tej trditvi

Version 2.748.3

Fixed

• Popravljeno zavračanje veljavnega vnosa pri Data Matrix: velikost simbola je bila ocenjena s polovitvijo števila števk, a code word si delita le sosednji števki, zato je besedilo, kot je 1a2a3a, izbralo premajhen simbol za svoje podatke in kodiranje ni uspelo
• Popravljeno dekodiranje štiribajtnih znakov UTF-8 v XFDF, na primer emoji, v napačen par surrogate; neprepoznan bajt nič več ne pogoltne treh znakov, ki mu sledijo
• Registri območij enhanced-metafile zdaj omejijo število pravokotnikov z velikostjo zapisa, namesto da zaupajo številu v glavi območja, ki je lahko bralo daleč čez zapis
• Slike PNG, katerih naznanjena širina krat višina preseže naslovljivi obseg, se zavrnejo že pri glavi, namesto da bi se dodelil slikovni predpomnilnik z negativno dolžino
• Visokokakovostno ponovno vzorčenje slik zdaj poroča o zahtevi izven obsega, namesto da bi preplavilo velikost svojega vmesnega predpomnilnika
• Slika WebP meta predpone, ki trdi več skupin entropije, kot ima slikovnih pik, se zavrne, namesto da bi iz nekaj sto bajtov vnosa dodelila stotine megabajtov tabel predpon
• Popravljeno puščanje na napačnih poteh kodiranja Aztec, dekodiranja bitne slike WebP in delovnega bazena za dekodiranje object-stream, kjer je bilo ob napaki poznejšega koraka opuščeno delno zgrajeno telo

Version 2.748.2

Fixed

• Popravljeno izgubljanje zadnjih bitov code word pri simbolih QR Code: sprehod po razporeditvi modulov je preskočil skrajno levi stolpec, zato rep zadnjega bloka za popravljanje napak ni bil nikoli zapisan v simbol
• Popravljeno polnjenje celotnega preostanka podatkovnega bloka z ničelnimi biti pri QR zaključku, zaradi česar ni ostalo prostora za pad code words 0xEC / 0x11, ki jih zahteva ISO/IEC 18004; simbol različice 1 je namesto tega nosil šest ničelnih code words
• Nov test prebere ustvarjeni simbol nazaj iz njegovih modulov, zato se podatkovni blok, pad code words, blok za popravljanje napak, maska in razporeditev preverjajo proti standardu, ne proti lastnemu izpisu kodirnika

Version 2.748.1

Fixed

• Popravljeno obešanje treh razčlenjevalnikov na nepravilnem vnosu namesto poročanja: razčlenjevalnik objektov ob >> znotraj polja ali ] znotraj slovarja, bralnik CMap ob tujem oklepaju ali zavitnem oklepaju in bralnik XFDF ob konstrukciji brez imena oznake (na primer deklaracija vrste dokumenta) ali tujem bajtu med atributi. Vsak od njih je prenehal premikati kazalko, zato je en nepričakovan bajt spremenil razčlenjevanje v neskončno zanko
• Popravljeno branje razdelkov CDATA v XFDF kot označbe: njihova vsebina se zdaj vzame kot besedilo elementa, oznaka razdelka pa se pravilno izmeri, namesto da bi pogoltnila prvi znak
• Popravljeno prelivanje preverjanja velikosti pri dolžini chunk WebP blizu 2 GB, zato je kopija payloada brala čez konec medpomnilnika datoteke; dolžine chunkov se zdaj preverjajo v 64-bitni aritmetiki
• Popravljeno sproščanje medpomnilnika chunk pri dolžini chunk PNG 0xFFFFFFFF, medtem ko je chunk še poročal o naznanjeni dolžini, kar je poznejša branja usmerilo v sproščen pomnilnik; predolgi chunki se zavrnejo
• Popravljeno prelivanje izračuna velikosti medpomnilnika vrstic pri dekodiranju faksa CCITT za zelo velike naznanjene geometrije strani, ki je lahko pisalo čez medpomnilnik; shramba vrstic je zdaj omejena in dekodiranje se pri mejnici lepo ustavi
• Popravljeno branje enega bajta čez konec vrstice optičnega pregleda pri kodirniku CCITT za širine, ki so večkratnik osmih
• Popravljeno branje registrov komentarjev enhanced-metafile skozi 32-bitno porezan kazalec na 64-bitnih gradnjah, ki je bralo nepovezan naslov za vsak EMF s komentarjem GDI
• Popravljeno objavljanje neinicializiranega pomnilnika kot repa barvne tabele pri 8-bitnih slikah z manj kot 256 vnosi palet; tabela zdaj naznanja svoje dejansko število vnosov
• Popravljeno izčrpavanje sklada z globoko gnezdenimi strukturami BER neomejene dolžine med razčlenjevanjem vsebnika podpisa ali certifikata; gnezdenje čez 128 ravni se zavrne

Version 2.748.0

Fixed

• Popravljeno popravljanje napak pri vseh 2D črtnih kodah, ki jih riše knjižnica: QR Code, Data Matrix, PDF417 in Aztec so gradili generatorski polinom od konstantnega člena navzgor, a delili z njim, kot da bi vodilni člen prišel najprej, zato je vsak simbol nosil kontrolne besede, ki jih noben standardu ustrezen bralnik ne sprejme. Kontrolne besede se zdaj ujemajo z obdelanimi primeri iz ISO/IEC 18004, ISO/IEC 16022 in ISO/IEC 15438
• Popravljeno izgubljanje tovoru pri simbolih Aztec: kodirnik deli polje code words na mestu in klicatelj izpiše isto polje, zato so bile besede sporočila prepisane z deljenjem in simbol ni nosil niti podatkov niti veljavnega sporočila načina
• Popravljeno začenjanje korenin generatorskega polinoma Data Matrix ena potenco prenizko, kar je dalo drugačen polinom od tistega, ki ga predpisuje priloga E standarda ISO/IEC 16022
• Popravljen iskalni vzorec Data Matrix: polna L je zdaj levi stolpec in spodnja vrstica, izmenična urina sled pa zgornja vrstica in desni stolpec, vsak se začne temno v kotu, ki ga deli z L. Bila sta zamenjana, zato bralniki niso mogli ugotoviti usmerjenosti simbola

Version 2.747.4

Fixed

• Popravljeno pisanje PDF števil pri urejanju naloženih dokumentov z decimalnim ločilom sistema: šivanje strani, črnjenje pravokotnikov, žigi besedila in slik, sestavljeni vodni žigi in ellipse appearances zdaj vedno izpišejo piko, tako da dokumenti, urejani v okoljih z decimalno vejico (na primer nemški ali francoski Windows), ne vsebujejo več content streamov, ki jih pregledovalniki zavrnejo
• Popravljeno nalaganje pisav Type 1, ki je bilo odvisno od območnih nastavitev sistema: FontMatrix, BlueValues, stem hints in charstring realna števila se berejo kot PostScript števila s piko, tako da pisave PFB ohranijo metrike in obrise namesto da se tiho sesujejo
• Popravljeno razčlenjevanje velikosti in barve pisave pri default appearance (/DA), atributov HTML width in size, rezultatov FormCalc in števil job JSON glede na območne nastavitve procesa; zdaj v vse smeri uporabljajo invariantno obliko
• Popravljeno risanje vgrajenega črtnega kode, ki je svoje pravokotnike črt zapisovalo prek oblike, odvisne od območnih nastavitev, kar je na sistemu z decimalno vejico dalo neveljaven content stream
• Gradnje Free Pascal zdaj razčlenjujejo in oblikujejo operande content stream, metrike za izdvajanje besedila in števila JavaScript z invariantno obliko, v skladu z gradnjami Delphi, namesto da se zanašajo na pretvorbo, odvisno od območnih nastavitev
• Zapisovalnik števil ne prepiše več decimalnega ločila globalnih nastavitev oblike gostujočega programa ob vsakem klicu, kar je spreminjalo, kako program formatira svoja števila, in je bilo nevarno, ko je več niti hkrati ustvarjalo dokumente

Version 2.747.3

Fixed

• Popravljeno pisanje PDF števil pri urejanju naloženih dokumentov z decimalnim ločilom sistema: šivanje strani, črnjenje pravokotnikov, žigi besedila in slik, sestavljeni vodni žigi in ellipse appearances zdaj vedno izpišejo piko, tako da dokumenti, urejani v okoljih z decimalno vejico (na primer nemški ali francoski Windows), ne vsebujejo več content streamov, ki jih pregledovalniki zavrnejo
• Popravljeno nalaganje pisav Type 1, ki je bilo odvisno od območnih nastavitev sistema: FontMatrix, BlueValues, stem hints in charstring realna števila se berejo kot PostScript števila s piko, tako da pisave PFB ohranijo metrike in obrise namesto da se tiho sesujejo
• Popravljeno razčlenjevanje velikosti in barve pisave pri default appearance (/DA), atributov HTML font size, rezultatov FormCalc in števil job JSON glede na območne nastavitve procesa; zdaj v vse smeri uporabljajo invariantno obliko
• Gradnje Free Pascal zdaj razčlenjujejo in oblikujejo operande content stream, metrike za izdvajanje besedila in števila JavaScript z invariantno obliko, v skladu z gradnjami Delphi, namesto da se zanašajo na pretvorbo, odvisno od območnih nastavitev

Version 2.747.2

Added

• Dodana podpora za Free Pascal Win32: paket Lazarus se zdaj gradi za i386-win32 in x86_64-win64 prek namenskih vstopnih točk za gradnjo, smoke suite sprejmejo argument arhitekture, odpravljene pa so težave s 32-bitnim prevajalnikom in povezovanjem C simbolov; ustvarjanje PDF, nalaganje, stiskanje Flate, šifriranje AES in upravljanje dokumentov CBZ so pokriti na obeh ciljih

Version 2.747.1

Fixed

• Popravljen ponovni poskus z zavrtjeno masko v vgrajenem dekodirniku črtnih kod, ki je v nedotaknjenih celicah zavrtjene maske puščal zastarele bajte — ti so ustvarjali fantomsko črnilo ter naredili simbole Code 39, zavrtjene za četrtino, neberljive; zavrtjeni medpomnilnik se zdaj izrecno ponastavi na nič, tako da se fotografije in skeni Code 39, zavrtjeni za 90 stopinj, dekodirajo prek ponovnega poskusa z vrtenjem

Version 2.747.0

Added

• Dodan uvoz slik WebP: AddImageFromFile zdaj sprejme datoteke .webp prek vgrajenega brezizgubnega (VP8L) dekodirnika, ki sledi RFC 9649 — kanonične prefix kode, prostorske meta prefix kode, LZ77 povratne reference s preslikavo razdalj sosedstva, barvni predpomnilnik ter vse štiri inverzne transformacije (predictor, color, subtract-green, color indexing s pakiranjem pikslov); izgubni okvirji VP8 se zavrnejo z jasnim sporočilom

Version 2.746.0

Added

• Vgrajeni dekodirnik črtnih kod zdaj prebere simbole QR v kateri koli od osmih usmerjenosti, v kakršni lahko prispe fotografirana ali skenirana stran: finder vzorci prepoznajo manjkajoči kot, vzorčena matrika modulov pa se pred dekodiranjem zavrti ali zrcali v pričakovano postavitev, tako da se zasnetki, zavrti za četrtino ali zrcaljeni, preberejo brez predobdelave

Version 2.745.0

Added

• Dodano vrednotenje kvalificiranih certifikatov po eIDAS za naložene podpise: GetLoadedSignatureQCStatements poroča o QCStatements certifikata podpisnika po ETSI EN 319 412-5 — vrednosti QcCompliance, QcSSCD in QcType, valuta/znesek/eksponent QcLimitValue ter lokacije PDS — poleg tega vlogi plačnika in prejemnika PSD2 po TS 119 495, ter sproži hevristiko kvalificiranega podpisa, ko sta QcCompliance in QcSSCD oba izjavljena (odločitev o zaupanju QTSP ostane pri klicatelju)

Version 2.744.0

Added

• Dodan N-up imposition za naložene dokumente: ComposeLoadedPagesNUp preoblikuje vsako stran na mrežno sestavljene liste izvorne velikosti papirja (2-up, 4-up, 6-up, do 16x16) za tisku pripravljen izhod, pri čemer v matriko postavitve vključi /Rotate vsake strani, deli vire strani s sestavljeno formo ter po potrebi izriše tanke okvirje celic z nastavljivim razmikom

Version 2.743.0

Added

• FlattenLoadedAnnotations zdaj splošči tudi annotacije brez appearance toka, namesto da jih tiho preskoči: widgeti najprej dobijo izgled polja, generiran iz vrednosti polja (primer /NeedAppearances, pogost pri obrazcih, natisnjenih iz brskalnika), tako da vnesena vrednost preživi v vsebino strani
• Označevalne annotacije (markup) brez /AP dobijo sintetiziran izgled, izrisan iz njihovih lastnih lastnosti — besedilo FreeText in Stamp s stilizacijo /DA in poravnavo /Q, liki Square in Circle z barvo /C / /IC ter širino /BS, poteze Line in Ink ter quad označbe Highlight / Underline / StrikeOut / Squiggly, ki upoštevajo /QuadPoints in prosojnost /CA
• Skrite annotacije (zastavica /F hidden) ostanejo annotacije, kadar je izgleda nimajo, ker bi sploščitev nevidne opombe naredila vidno

Version 2.742.0

Fixed

• Popravljeni buildi paketa za Free Pascal, ki so od 2.738.0 spodleteli: deklaracije članov za LTV dokaze in seed vrednosti so stale znotraj pogojnega bloka, ki velja le za Delphi, njihove implementacije pa so bile brez pogoja, tako da se paket za Free Pascal ni več prevedel; implementacije zdaj nosijo isti pogoj in se paket spet zbuilda

Version 2.742.0

Added

• Uvoz HTML zdaj razrešuje tabele na polni zasedbeni mreži, tako da celice s rowspan in colspan pravilno zasedejo svoje stolpce, kasnejše vrstice pa zasedena mesta preskočijo, namesto da bi se premaknile levo
• Višine vrstic tabel izhajajo iz oblivanja besedila celice s pisavo same celice, namesto iz ocene po številu znakov, tako da mešana ozka in široka vsebina ne proizvaja več prelivajočih ali prevelikih celic
• Širine stolpcev sledijo namigom o širini <col> in atributom širine na posamezno celico, glavne vrstice, označene s <thead> (ali začetne vrstice vseh <th>), pa se ponovijo na vrhu vsake nadaljevalne strani, ko tabela prečka prelom strani
• Skupina z razponom po vrsticah (rowspan) ostane čez prelome strani cela: vrstice, povezane z razpenjajočo celico, se skupaj prenesejo na naslednjo stran, tako da razpenjajoče celice nikoli ne prereže

Version 2.741.0

Fixed

• Popravljeni buildi Free Pascala, ki so se končali, namesto da bi prijavili napako, ko je dokument potreboval enega od kodekov, ki jih ti buildi ne povežejo: odpiranje TIFF-a, dekodiranje slike JPEG 2000 ali JBIG2, branje progresivnega ali pomanjšanega JPEG-a, uporaba barvne transformacije ICC ali zahteva po ponovnem stiskanju Zopfli je proces takoj končala
• Vsaka od teh operacij zdaj odpove na način, kot ga klicatelj že pričakuje, tako da se dokument, ki eno od njih uporablja, naloži s preskočeno zmožnostjo, namesto da podre aplikacijo

Version 2.741.0

Added

• Dodano izluževanje besedila po vrstnem redu strukture: ExtractLoadedPageStructureText obišče drevo strukture dokumenta v vrstnem redu nastajanja (ISO 32000-1 14.8.4) ter zlepi nize marked-content strani po MCID, tako da označeni dokumenti, kot so državni obrazci in dostopne publikacije, izlužijo svoj avtoritativni vrstni red branja, namesto geometrijskega ugibanja; glifi, ki jih drevo nikoli ne prevzame, padejo v geometrijski rep in se štejejo v poročilu o neoznačenih

Version 2.740.0

Fixed

• Popravljeno izgubljanje prosojnosti barvnih glifov v buildih Free Pascala: vgrajene barvne bitmape so se brale po poti, ki zavrže alfa kanal, tako da je bil vsak glif emojija ali barvne pisave izrisan kot neprozoren pravokotnik. Bitmape zdaj ohranijo alfo na nivoju pikslov

Version 2.740.0

Fixed

• Omogočeno dogovarjanje ključev ECDH P-384: končna pogojna odštevalna operacija CIOS Montgomery množenja je primerjala z P limb plus posojo, kar se pri vseh enicah v visokih limbih praštevil P-384 / P-521 ovije v nič ter tiho naredi napačno posojo; primerjava zdaj zazna posojo brez seštevanja s prelivanjem ter skupni skrivni ključ P-384 se ujema z referenčnimi vektorji OpenSSL bajt za bajtom

Version 2.739.0

Added

• Buildi Free Pascala zdaj šifrirajo in dešifrirajo dokumente: vstopne točke AES posluža lastna implementacija FIPS-197 v knjižnici, namesto da bi prijavila napako nepodprte operacije, tako da je tam mogoče ustvariti in odpreti datoteke, zaščitene z AES-128 in AES-256
• Šifriranje in dešifriranje AES-GCM, vključno s streaming kontekstom za velike payloade, je na voljo v buildih Free Pascala
• Free Pascal smoke test zdaj preveri šifro proti znanemu odgovoru FIPS-197, izvede krožna preizkusa PKCS#7 in GCM ter ustvari in znova naloži dokument, zaščiten z AES-256, z zavrnitvijo napačnega gesla

Version 2.739.0

Added

• Dodana tipografija odstavkov CSS2.1 v uvozni pogon HTML5: text-align (z starejšim atributom align in preslikavo oznake center), letter-spacing in word-spacing prek PDF operatorjev Tc / word-space, text-indent za zamike prve vrstice ter pravila text-decoration underline / line-through, tako da obstoječi uvozi HTML s spleta in iz e-pošte ohranijo sredinjene naslove, zamike in podčrtave
• Razširjen vgrajeni dekodirnik QR nad verzijo 1: verzija simbola se zdaj izpelje iz geometrije finderjev prek deljivosti mreže (verzije 2-40 s čisto mrežo modulov se dekodirajo), omejitev dolžine v byte načinu sledi zmogljivosti po verzijah iz tabele 7 ISO/IEC 18004, karta funkcijskih modulov pa pokriva poravnalne vzorce in bloke informacij o verziji za višje simbole

Version 2.738.0

Added

• Buildi Free Pascala zdaj domorodno stiskajo in razpakirajo dokumente: kodek deflate zagotavlja vgrajen backend nad implementacijo zlib v Pascalu, ki pride skupaj s Free Pascalom, tako da vsebina FlateDecode ne prijavlja več napake nepodprte operacije
• Stisnjene dokumente je pod Free Pascalom mogoče ustvariti in znova naložiti s privzeto nastavitvijo stiskanja, tokovi navzkrižnih sklicev, tokovi objektov, vgrajene datoteke in stisnjena vsebina strani pa se tam vsi dekodirajo
• Backend pokriva ovoje zlib in surovega deflate, ovoj gzip ter samodejno zaznavanje glave, tako da se uvozi SVG in decompression fallback z več velikostmi okna obnašajo kot pod Delphijem
• Free Pascal smoke test zdaj preveri kodek s samo-preizkusom ovoja in kontrolne vsote ter s krožnim preizkusom stisnjenega dokumenta

Version 2.738.0

Added

• Dodano dokončanje verige prek AIA caIssuers: HPDFFetchAIAIntermediates preišče končne točke access-method 1.3.6.1.5.5.7.48.2 kompleta certifikatov CMS prek transporta klicatelja (gola telesa DER in PEM se oba dekodirata), možnost validacije FetchMissingIntermediates pa napaja pridobljene intermediates v izgradnjo poti, tako da se podpisi podpisnikov v oblaku z osamljenim certifikatom končne entitete validirajo, namesto da bi gradnja poti spodletela
• Dodano omogočanje LTV v enem klicu: PopulatePAdESLTVEvidence obišče vsak naložen podpis, pridobi njegove intermediates in dokaze OCSP/CRL prek spleta ter material zapiše v DSS dokumenta, s čimer svež dokument s podpisom B-B nadgradi v B-LT brez ročno sestavljenih tabel dokazov
• Dodano uveljavljanje seed vrednosti pri podpisovanju: CheckLoadedSignatureSeedValue prebere slovar /SV polja podpisa ter preveri kandidatni SubFilter, DigestMethod, Reason in profil DocMDP proti njegovim omejitvam s semantiko force-bit iz ISO 32000-1 12.7.5.5, tako da se omejitve avtorja obrazca upoštevajo, preden se podpis postavi

Version 2.737.0

Added

• Dodano strogo preverjanje shranjevanja prek lastnosti VerifySavedOutput: po pisanju sveža instanca bralnika z izklopljenim okrevanjem navzkrižnih sklicev znova naloži datoteko, tako da pokvarjena serializacija sproži napako na mestu klica, namesto da bi se pokazala pri naslednjem porabniku
• Razširjen ReproducibleOutput na šifrirane dokumente: tokovi AES-CBC uporabljajo statično konvencijo IV 14*(1+i), ključni material in soli se izpeljejo deterministično, kanonični ID dokumenta pa normalizira nestanovitne časovne žige Info, kar daje bajtno enaka šifrirana shranjevanja za regresijske pipeline

Version 2.736.0

Added

• Dodana kakovostna resampling in monokromsko dithering prek nove enote HPDFResample: separabilni kerneli Catmull-Rom bicubic in Lanczos3 nadomestita semantiko raztegovanja GDI pri pomanjševanju slik prek lastnosti ImageDownsampleKernel, RenderOutputDither pa uporabi Floyd-Steinberg difuzijo napake po sestavi strani, tako da izhod predogleda tiska ohrani fotografske podrobnosti v čisti črno-beli

Version 2.735.2

Fixed

• Popravljeni razpakirni tokovi Flate, ki so pri ponovnem polnjenju iz izvornega toka podali naslov spremenljivke medpomnilnika, namesto samega medpomnilnika, kar je pokvarilo pomnilnik ob vsakem branju in lahko podrl proces; prizadeto je vse: nalaganje stisnjenih dokumentov, razredi tokov inflate ter pomožni tokovi za stiskanje in razpakiranje

Version 2.735.1

Fixed

• Popravljeni razrastljivi polji XFA brez podatkovnega vira, ki so se ob sploščevanju skrčile v eno vrstico: njihova višina se zdaj izmeri iz besedila, ki ga izjavi sama predloga — to je tisto, kar tako polje prikaže. Polje, vezano na prazne podatke, se še naprej meri kot prazno

Version 2.735.0

Added

• Buildi Free Pascala zdaj pokrivajo celotno knjižnico: vsaka enota se prevede s FPC 3.2.2 in Lazarusom, kjer se je prej prevajala le osnovna pot ustvarjanja in nalaganja
• Vsebnike XPS, EPUB in CBZ je pod Free Pascalom mogoče uvoziti prek vgrajenega bralnika ZIP, ki zna samo brati ter obravnava velikosti ZIP64, vnose stored in deflated, preverjanje CRC ter tradicionalno šifrirane vnose z istim geslom callback kot pot Delphi
• Sploščevanje obrazcev XFA, izračunski pogon FormCalc, runtime widgetov, komponente pregledovalnika dokumentov, upravljalniki pisav Type 1, uvoz HTML, preverjanje podpisov ter job runner se vsi prevajajo v buildih Free Pascala; sploščevanje paketov XFA naloženega dokumenta poleg tega potrebuje kodek deflate, ki ga ti buildi ne povežejo

Fixed

• Popravljena zamenjava bajtov 64-bit v pomožni enoti PNG, ki je na Win64 vračala napačne vrednosti in je enoto popolnoma izpustila iz builda

Version 2.735.0

Added

• Dodano zaznavanje manjkajočih glifov ob risanju: lastnost TrackUnresolvedGlyphs zabeleži vsako kodno točko, ki bi se skozi aktivno Unicode pisavo izrisala kot tofu škatla .notdef, ob vsaki ugotovitvi sproži dogodek OnUnresolvedGlyph ter ned registrirane čisto-GDI dokumente pusti pri miru
• Dodana podpora za staro tabelo kern: RegisterUnicodeTTF zajame tabelo kern iz dobe Apple/GDI, oddajanje kerninga pa pada nazaj na njeno binarno iskanje parov format-0, ko pisava nima GPOS kern lookupov, s čimer se vrne klasični razmik parov v pisavah, kot je privzeti Arial
• Dodan font fallback na nivoju odsekov znotraj razporeditve odstavkov: WideTextOutBox zdaj razdeli vsako oblito vrstico pri kodnih točkah, ki jih trenutna pisava ne more preslikati, vsak odsek pa izriše v njegovi razrešeni fallback pisavi, tako da se odstavki, mešani iz latinice, emojijev in CJK, izrišejo brez tofu, kadar so registrirane fallback verige

Version 2.734.0

Added

• Dodano ogrodje za zahtevke časovnega žiga RFC 3161: HPDFRFC3161BuildRequest izda DER TimeStampReq s svežim pozitivnim nonce-om INTEGER, po želji s policy OID in certReq, HPDFRFC3161ParseResponse pa dekodira glavo PKIStatusInfo ter izluži žeton, tako da so transportni callbacki TSA tri vrstice, namesto študije DER
• Dodana deklaracija razvijalske razširitve ISO/TS 32002 (THotPDF.EnsureISO32002Extensions), ki pokriva algoritme podpisov EdDSA ter dodatne krivulje ECDSA v dokumentih PDF 2.0 — idempotentna in vezana na verzijo, tako kot deklaracija 32001 SHA-3

Version 2.733.0

Added

• Dodano prenosljivo dogovarjanje ključev X25519 in X448 po Montgomery ladder ter ECDH na krivuljah NIST P-256 / P-521 s CIOS Montgomery množenjem, kar omogoča, da se prejemniki javnih ključev s dogovarjanjem ključev (KARI) ustvarijo in odvijejo popolnoma v procesu; RFC 7748 ter referenčni vektorji, generirani z OpenSSL, zakleneta obnašanje ladder v regresijsko zbirko
• Dodan HPDFUnwrapKeyAgreementRecipientEnvelope skupaj z vstopnima točkama AddPubSecAgreementKeyMaterial in AddPubKeyAgreementRecipientWithSecret, tako da je dokumente, šifrirane s prejemniki ECDH / X25519 / X448, mogoče odpreti z zasebnim skalarjem prejemnika ter šifrirati brez zunanjega ECDH orodja

Version 2.732.0

Changed

• Shranjevanja zdaj usmerjajo izhod serializatorja skozi pisanje z medpomnilnikom 1 MiB, pri čemer se posamezni klici Write za glave objektov, ključe slovarjev in vrstice xref združijo v paketne push-e na ciljih, podprtih z datoteko
• Payloadi tokov navzkrižnih sklicev uporabijo PNG Up napovedovanje (/DecodeParms /Predictor 12) pred FlateDecode ter skrčijo luknje proste liste prek podrazdelkov /Index, s čimer se vsebniki xref skrčijo v vsakem dokumentu PDF 1.5+ in pri redkih območjih objektov
• Lastnost CompressionLevel zdaj izbira tudi Flate trud tokov navzkrižnih sklicev in vsebnikov tokov objektov, tako da clMaximum med shranjevanjem proizvaja manjše strukturne toke

Fixed

• Širine polj /W toka navzkrižnih sklicev se zdaj prilagodijo dejanskemu območju odmikov, namesto fiksni postavitvi [1 4 2], katere pretvorba v Cardinal je tiho odsekala odmike nad 4 GiB v pokvarjen izhod

Version 2.731.0

Changed

• Ponovno zgrajen vgrajeni OCR s primerjanjem predlog: izluževanje glifov po povezanih komponentah, ocenjevanje pokritosti v sivinskih tonih proti predpomnjenim predlogam več pisav, Otsu binarizacija z local-window fallbackom, deljenje besed po dvojakih vrzelih, osnovne črte na besedo, zavrnitev madežnega šuma ter razširjena abeceda 62 znakov, ki prepozna ASCII besedilo z mešanimi velikimi in malimi črkami prek gručenja višin na nivoju vrstic in preference konteksta velikosti črk

Version 2.730.0

Added

• Dodana podpora Win64 za Free Pascal 3.2.2 in Lazarus 4.6, vključno z runtime paketom, reproducibilnim build skriptom, slojem združljivosti in ne-GUI smoke testom ustvari-in-znova-naloži; domorodne statične integracije kodekov ostanejo le za Delphi ter v buildih Free Pascala prijavijo izrecno napako nepodprte operacije

Version 2.729.0

Added

• Dodan gostiteljsko nevtralen dinamičen runtime widgetov XFA z urejanjem Unicode, preizkušanjem fokusa in udarcev, vezavo, ki pozna instance, atomarno validacijo in izračun, omejenim preoblikovanjem razporeditve ter tovarno naloženih dokumentov, ki zna samo brati in ohrani izvorni XFA

Version 2.728.0

Fixed

• Popravljeno notranje merjenje XFA in nadaljevanje besedila, da ohrani izrecno prazne in izračunane vrednosti, uporabi vezavni konteks vsakega polja ali ponavljajoče se vrstice, obdrži akcije breakAfter, se izogne trkom sintetičnih imen ter uveljavi predpomnjen globalni proračun merjenja

Version 2.727.0

Changed

• Razporeditev XFA zdaj upošteva notranje najmanjše in največje dimenzije, meri razrastljiva polja iz njihovega vezanega besedila ter atomarno razdeli upravičeno vsebino textEdit čez vsebinska območja in strani z nadaljevalnimi polji, ki zna samo brati, ter z omejenimi proračuni besedila, fragmentov in merjenja

Version 2.726.0

Added

• Dodani popolni atributi process in spot za NChannel, namigi mešanja, omejeni spektralni tokovi barvil CxF/X-4 za PDF 2.0 ter preverjanja skladnosti na nivoju dokumenta za definicije odtenkov spot in zunanje tabele barvil output-intenta

Version 2.725.0

Added

• Dodan thread-safe determinističen SIMD scanline render backend, ki preflighta podprte prikazne sezname pravokotnikov, končno bitmapo zapiše v vektorskih blokih brez vmesne kopije bitmape ter vrača točne razloge zavrnitve na zahtevo skozi obstoječi software fallback in telemetry pipeline

Version 2.724.0

Changed

• Razširjen omejen domorodni ovrednotilnik FormCalc s splošnimi agregati SOM node-set, mešanimi argumenti skalarjev in node-set, gnezdenimi številskimi in niznimi klici ter determinističnimi funkcijami izbire, nizov, trigonometrije, logaritmov in pretvorb pod obstoječimi proračuni operacij, tabel, globine, časa in izhoda

Version 2.723.0

Changed

• SubsetLoadedFonts zdaj varno izdela podnabore vgrajenih programov Type 1 PFB ter razcepljenih binarnih in hex PFA, ohrani rekurzivne odvisnosti kompozitov TrueType in zapre odvisnosti orisov COLR v0/v1, pri čemer obdrži tabele barv, bitmap, variacij in shapinga

Version 2.722.0

Added

• Dodani omejeni geselski callbacki za klasične vnose XPS, EPUB in CBZ, šifrirane z ZIP, vključno z omejitvami poskusov na vnos, preverjanji preklica, ravnanjem s poverilnicami samo v pomnilniku ter fail-closed zavrnitvijo nedosegljive, neveljavne ali nepodprte šifriranja

Version 2.721.0

Changed

• DownsampleLoadedImages zdaj spremeni velikost podprtih vzorcev slik 8-bit Separation in DeviceN neposredno v komponentnem prostoru ter ohrani izvorni graf barvnega prostora, transformacijo odtenkov, barvila, območja /Decode in semantiko overprinta čez shranjevanje in ponovno nalaganje

Version 2.720.0

Added

• Dodane omejene vgrajene preobremenitve prepoznavanja za OCR velikih tiskanih črk ASCII z visokim kontrastom, vodoravne kode Code 39 in čiste simbole QR verzije 1 v byte načinu, poravnane z osmi, kar omogoča iskalne plasti besedila ter dekodiranje črtnih kod naloženih strani brez pogona, ki ga bi dobavil klicatelj, medtem ko dvoumni ali nepodprti vhod fail-closed odpove

Version 2.719.0

Added

• Dodana omejena prefinjitev JPEG 2000 po resoluciji in plasti kakovosti prek THPDFJpeg2000Decoder.LoadProgressiveFromByteArray ter večplastno kodiranje prek TJpeg2000Bitmap.QualityLayers, z identičnimi končnimi piksli za vrstne rede napredovanja LRCP, RLCP, RPCL, PCRL in CPRL

Version 2.718.0

Changed

• Vgrajeni popolni CMap-i UniJIS, UniGB, UniCNS in UniKS za UCS2 in UTF16, vodoravni in navpični, vključno z dopolnilnimi skalarnimi vrednostmi in standardnimi navpičnimi privzetimi vrednostmi, tako da izluževanje besedila CJK in geometrija nista več odvisna od zunanjih datotek preslikav Unicode ali ugibanj o pol em

Version 2.717.0

Added

• Dodana izrecna območja odvisnosti od skupnih objektov pri linearizaciji ter razporejevalnik prebarvanja ob prihodu območij, tako da strani lahko pobarvajo, preden prispejo vse izbirne odvisnosti, in prebarvajo točno takrat, ko na novo dosegljivi podatki spremenijo rezultat

Version 2.716.0

Added

• Dodano omejeno popravilo grafa objektov za actionable ugotovitve preflighta xref, trailerja, kataloga, drevesa strani in drevesa imen z validirano transakcijsko potrditvijo ter popolnim povratnim odvijem ob nevarnem ali dvoumnem vhodu

Version 2.715.0

Added

• Dodani ovoji šifriranih payloadov PDF 2.0, kjer videni del dokumenta ostane berljiv pred avtentikacijo, medtem ko imena, opisi in bajti vgrajenih datotek ostanejo zaščiteni do izrecnega odklepanja z geslom

Version 2.714.0

Changed

• Izvoz SVG naloženih strani zdaj izda aksialne in radialne gradiente, omejene predstavitve PNG za mesh senčenja Type 4 do Type 7 ter dekodirane inline slike, brez povečevanja ustreznih števcev preskokov

Version 2.713.0

Changed

• Barvni glifi OpenType SVG zdaj uporabljajo omejeno pipeline Form XObject za loka, vektorske gradiente, prosojnost, geometrijske maske ter ponovno uporabo lokalnih #id, hkrati pa še naprej zavrnejo skripte, zunanje vire, slike in nepodprto aktivno vsebino

Version 2.712.0

Changed

• ReplaceLoadedPageText zdaj zamenja zadetke, ki segajo čez nizne elemente in tabele TJ, prek obsegov glifovih virov, pri čemer ohrani številke za kerning, neujemajoče se predpone in pripone, nepovezane operande ter prvotno strukturo toka vsebine

Version 2.711.0

Added

• Dodana razrešitev SyntheticBase za CFF FontSet s podedovanimi vrednostmi Top in Private DICT, CharStrings, charset, Encoding in Local Subrs, poleg tega deterministična semantika preglasitev ter omejena zavrnitev neveljavne, ciklične ali pretirano globoke dediščine

Version 2.710.0

Added

• Dodana deterministična omejena izbira Flate napovednika prek HPDFSelectFlatePredictor, z razporejenimi vzorci vrstic, ocenjenimi stroški v bajtih, nastavljivim uteževanjem CPE in izrecnimi proračuni bajtov, vrstic in dela

Version 2.709.0

Added

• Dodana domorodna izbira za izhod slovarjev simbolov JBIG2 s Huffmanom in besedilnih območij prek THPDFJBIG2Options.UseHuffmanEncoding, vključno s standardnimi tabelami DH, DW, BMSIZE, FS, DS in DT, surovimi kolektivnimi bitmpami, tabelami ID-jev simbolov, determinističnim domorodnim usmerjanjem ter pikselsko točnimi krožnimi preizkusi dekodirnika, hkrati pa ostanejo privzete vrednosti arithmetic in MMR

Version 2.708.0

Changed

• Predpomnjene obratne preslikave cmap za arabske in kombinirane presentation oblike po generaciji registrirane pisave, s čimer se odpravijo ponavljajoči pregledi U+FB00..U+FDFF in U+FE70..U+FEFF v ApplyArabicGSUBRefinement, ApplyArabicGSUBContextualRefinement ter splošni kontekstualni poti GSUB, ob ohranitvi prednosti kodnih točk in oblikovanega izhoda

Version 2.707.0

Added

• Dodan kodirnik dvodimenzionalnih črtnih kod Aztec (ISO/IEC 24778) prek THPDFPage.DrawAztec in samostojne enote THPDFAztec: visokonivojsko kodiranje z dinamičnim programiranjem, s prijetji načinov, premiki in nizi binary-shift, polnjenjem bitov, popravljanjem napak Reed-Solomon nad GF(16) do GF(4096), samodejno izbiro kompaktnih simbolov 15x15..27x27 ali polnih 19x19..143x143 ter nadzorom vsiljenih plasti za fiksne velikosti simbolov
• Dodana sestava navpičnega besedila strani: THotPDF.ExtractLoadedPageText in API-ji za združevanje po območjih in tokih zdaj gručijo glife WMode 1 v stolpce po izhodiščni X glifa, stolpce uredijo od desne proti levi in vsak stolpec prehodijo od zgoraj navzdol, namesto da bi navpično besedilo CJK razkosali v vrstice na glif

Fixed

• Popravljen vzporedni izvoz po pasovih, ki je spodletel z neujemanjem širine pasu PNG na straneh z delnimi dimenzijami pikslov (A4 pri 96 DPI): velikost rastra se zdaj zaokroži s Ceil, enotno s pisalci pasov, tako da dobavljene ploščice vedno ustrezijo širini kodirnika

Version 2.706.0

Added

• Dodan streaming izvoz PNG naloženih strani in izvoz večstranskih TIFF po pasovih prek THotPDF.SaveLoadedPageToPng, SaveLoadedPageToPngStream, SaveLoadedPagesToTiffBanded in SaveLoadedPagesToTiffStreamBanded, ki stisnjene slikovne podatke zapisuje vrstico za vrstico skozi kodirnike pasov, tako da zelo velike strani ne potrebujejo popolnega framebufferja; THPDFBandImageExportInfo poroča telemetrijo strani, pasu, vrstice, delavca, pomnilnika, izhoda, trajanja in preklica

Version 2.705.0

Added

• Dodana finalizacija PDF/A v naloženih poteh shranjevanja: THotPDF.SaveLoadedDocument in SaveLoadedDocumentToStream zdaj validirata OutputIntent GTS_PDFA1 (podedovan iz izvornega kataloga ali sveže registriran) in izdata identifikacijo XMP pdfaid:part / pdfaid:conformance, kadar je nastavljen PDFACompliance, pri čemer obstoječi paket pdfaid ob ponovnem shranjevanju ohranita bajt za bajtom
• Dodana poraba navpičnega pisanja (WMode 1) na strani nalaganja: metrike celic CIDFont /W2 in /DW2 zdaj vodita izluževanje besedila in izrisovanje strani, stolpci pa se prehodijo navzdol po y osi besedilnega prostora s pozicijskim vektorjem v1x/v1y, namesto z vodoravnimi premiki /W

Version 2.704.0

Added

• Dodano vzporedno izrisovanje ploščic in pasov naloženih strani prek THotPDF.RenderLoadedPageTilesParallel in THotPDF.RenderLoadedPageBandsParallel, s callbacki klicne niti po vrsticah, izposojenimi bitmpami, sodelovalnim preklicem, klicatelju nadzorovanim pomnilnikom v teku, sprejemom po vrhu pomnilnika ter omejenim nespremenljivim predpomnilnikom glifov Type 3 in rasterskih zaslonov, ki si ga delijo izolirani render konteksti

Version 2.703.0

Added

• Dodane omejene paketne priprave digestov CSC multisign prek THPDFCSCSignatureProvider.SignHashBatch, z enim SAD, pripetim na hash, in enim zahtevkom signatures/signHash za urejen paket istega algoritma, hkrati pa se uveljavljajo lokalne omejitve in omejitve poverilnic multisign, stroga kardinalnost odgovorov, sinhrono ali asinhrono urejanje rezultatov, idempotenčni ključi SHA-256, naslovljeni na vsebino, ter ponovitev zaključenega paketa

Version 2.702.0

Added

• Razširjen THotPDF.RenewPAdESLTATimestamp s certifikatom ter dokazi OCSP in CRL, ki jih dobavi klicatelj in se združijo v obstoječi DSS pred novim časovnim žigom dokumenta RFC 3161, ohrani vsako prejšnjo revizijo bajt za bajtom ter točno izloči podvojitve validacijskih tokov čez zaporedne obnovitve

Version 2.701.0

Added

• Dodan preflight osnovnega in razširjenega profila PAdES, naslovljiv po členih, prek THotPDF.PreflightLoadedPAdES, ki poroča o vsaki veljavni zahtevi s stabilnim ID-jem pravila, profilom, normativno ravnjo, členom standarda, potjo PDF, številko objekta, podpisano ali trenutno revizijo in statusom uspešnosti, hkrati pa validira kardinalnosti CMS, sklice ESS certifikata podpisnika, omejitve slovarja podpisa, pokritost byte-range, zaupanja vredni čas, dokaze DSS in pokritost časovnega žiga dokumenta

Version 2.700.0

Added

• Dodano end-to-end nalaganje zasebnih ključev PFX / PKCS#12 in podpisovanje dokumentov CMS za ECDSA, Ed25519 in Ed448, vključno s CNG ECDSA na imenovanih krivuljah, neobveznim PureEdDSA OpenSSL 3, dekodiranjem ključev po RFC 8410, pravili digestov in parametrov po RFC 8419, SHAKE256 z 512-bitnim izhodom za Ed448, samodejno izbiro algoritma ključa ter strogim parjenjem certifikata s ključem

Version 2.699.0

Added

• Dodana deterministična izbira poverilnic PFX / PKCS#12 z več identitetami prek HPDFEnumeratePFXIdentities, HPDFParsePFXByLocalKeyID in THPDFCMSSignOptions.PFXLocalKeyID, vključno s strogimi enovrednimi atributi torb localKeyId in friendlyName, parjenjem javnih ključev, rekurzivnimi torbami safe-content, omejeno diagnostiko dvoumnosti in ciklov ter samodejnim vgrajevanjem ujemajočih se intermediate in korenskih verig certifikatov z točno izločitvijo podvajanj DER

Version 2.698.0

Added

• Razširjeno dešifriranje PBES2 PFX / PKCS#12 v procesu z AES-128-CBC in AES-192-CBC ter PRF PBKDF2 HMAC-SHA-384 in HMAC-SHA-512, vključno s po šifri neobvezno validacijo keyLength ter omejenimi preverjanji soli, iteracij, IV in blazinjenja, hkrati pa ostane združljivost z AES-256-CBC in HMAC-SHA-1 / SHA-256

Version 2.697.0

Added

• Dodano skladno s specifikacijo dedovanje FixedPage.NavigateUri za Canvas v XPS in OpenXPS, tako da potomci Path, Glyphs in gnezdene vizualije Canvas prejmejo obsegani URI, razen če ga preglasijo, pri čemer se ohranijo akcije LinkTarget za zunanje, poštne, strani-paketa in percent-dekodirane cilje skozi transformacije, gnezdene izreze, izolirane skupine prosojnosti, potlačitev ponovno uporabnih vizualij, obnovo po gnezdenih preglasitvah ter obstoječe omejitve povezav, URI, preklica in nevarnih shem

Version 2.696.0

Added

• Dodane omejene domorodne skupine prosojnosti Canvas v XPS in OpenXPS, tako da se vrednosti Opacity ter enobarvnih, gradientnih ali slikovnih Canvas.OpacityMask zložijo čez prekrivajoče podrejene vizualije enkrat skozi izolirane Form XObjecte DeviceRGB, s zloženo enotno alfo, deljenimi soft maskami s spremenljivo alfo, gnezdenimi skupinami, preoblikovanimi izrezi, prenosom virov, ohranjenimi povezavami ter fail-closed ravnanjem z razpadlo, nepodprto, singularno ali preveliko vsebino

Version 2.695.0

Added

• Dodana omejena domorodna pretvorba Canvas.Clip v XPS in OpenXPS za okrajšano geometrijo, vrednosti PathGeometry iz lokalnih ali oddaljenih StaticResource, neposredne elemente lastnosti, strukturirane like črt, Bézierja, kvadratik in lokov, transformacije geometrije, prazne izreze ter gnezdeno izrezovanje EvenOdd ali NonZero prek PDF W* ali W, z izrezanimi mejami navigacije, omejitvami razčlenjevanja 100.000 vrednosti ter fail-closed ravnanjem z razpadlimi ali singularnimi transformacijami

Version 2.694.0

Added

• Dodana omejena domorodna navigacija XPS in OpenXPS za preoblikovane vizualije Path in Glyphs, pri čemer se povezave HTTP, HTTPS in poštne ohranijo kot annotacije URI PDF, strani, relativne na paket, ter percent-dekodirani fragmenti LinkTarget pa se razrešijo v akcije PDF GoTo naprej ali nazaj, ko vse strani že obstajajo, z mejami klikov, ki upoštevajo metrike, omejitvami 65.536 povezav in 8.192 znakov, potlačitvijo zajema VisualBrush, preklicem ter fail-closed diagnostiko nevarnih shem

Version 2.693.0

Added

• Dodana omejena domorodna pretvorba VisualBrush v XPS in OpenXPS za vgrajene ali iz virov podprte vizualije Canvas, Path in Glyphs, hierarhično in oddaljeno iskanje ResourceDictionary, absolutni Viewbox, absolutni ali relativni Viewport, tlakovalne načine None, Tile in zrcaljenja, transformacije, prosojnost, ponovno uporabne Form XObjecte, deljene tlakovalne vzorce, prenos virov, ki pozna žetone, ter fail-closed proračune ciklov, razpadlega vhoda, rekurzije, vsebine, predpomnilnika in postavitev

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Added

• Ponovno uporabne politike preverjanja zdaj pokrivajo ponovno uporabo WTPDF, dostopnost in sprejem preverjenih deklaracij, razkrijejo metapodatke zahtevkov deklaracij in napake, ki poznajo vir, poženejo urejene pakete skozi mejene omejitve delavcev in vrst ter zagotovijo neodvisne načine inspect, add-missing in synchronize za popravljanje metapodatkov XMP

Version 2.472.0

Added

• Preverjanje CMS zdaj podpira Ed25519 in Ed448 skozi dinamično izbranega platformnega ponudnika ter ML-DSA-44, ML-DSA-65 in ML-DSA-87 za izrecno razširitvijo za razvijalce PDF 2.0, skupna mejena pogodba ponudnikov pa omogoča podpisovanje RSA prek callbackov, oddaljeno in PKCS#11 s ponovnim poskusom, preklicem, identifikatorji ključev in parametri, specifičnimi za algoritem

Version 2.471.0

Added

• Izrisovanje naloženih strani zdaj cilja na skupno abstrakcijo naprav za lastne bitne slike, zunanje kontekste naprav, kot so tiskalniki, in enhanced metafiles, izbirni CMYK overprint proofing pa razlaga /OP, /op in /OPM 1 za predogled kombiniranih procesnih barvil poleg obstoječega izrisovanja knockout skupin prosojnosti

Version 2.470.0

Added

• Spremenljive pisave OpenType zdaj razkrijejo metapodatke osi in poimenovanih instanc s preverjeno izbiro na os in integracijo ponudnika statičnih instanc, plasti COLR in CPAL, dokumente glifov SVG ter bitne strike CBDT pa je mogoče pregledati in izrisati skozi nativne ali klicateljeve poti rastrovanja

Version 2.469.0

Added

• Izdelava podnaborov pisav TrueType in OpenType lahko zdaj ponovno uporabi preverjene rezultate, naslovljene po vsebini, iz vztrajnega predpomnilnika na disku z atomskimi zapisi, obnovo po poškodbi, izrinom po bajtnem proračunu na osnovi dostopov, ohranjanjem kompaktne preslikave CID ter opazljivo statistiko zadetkov, zgresitev, zapisov, zavrnitev in izrinov

Version 2.468.0

Added

• Ponovno uporabni elementi razporeditve zdaj razkrijejo merjenje brez stranskih učinkov, lastne umestene fragmente in fragmente prelivanja za odstavke, vrstice, vsebnike in paginiranje po meri, poleg tega pa deklarativne plasti ozadja, glave, noge in ospredja, uveljavljene v stabilnem vrstnem redu sestave strani

Version 2.467.0

Added

• Linearizirani viri z naključnim dostopom zdaj poročajo mejeno razpoložljivost prve strani in glavnega xref, naloženi tokovi lahko uporabijo deterministično rekompresijo Flate visokega razmerja s štirimi strategijami, neodvisni slikovni tokovi pa se lahko optimizirajo vzporedno s klicateljevimi delavci in potrditvami v vrstnem redu vira

Version 2.466.0

Added

• Naloženi dokumenti zdaj razkrijejo stanja predmetov clean, dirty, released in must-write, varno sprostitev predpomnilnika tokov predmetov po shranjevanju, preverjanje prostega seznama in generacij xref z mejenimi podrobnostmi zasenčenih definicij, determinističen izhod slovarjev in diagnostična shranjevanja v slogu QDF, ki ohranijo vsebino

Version 2.465.0

Added

• Filtri ASCII85 in ASCIIHex zdaj razkrijejo mejene dekodirnike tokov s strogimi končnimi označevalci, diagnostiko lihih nibble in ohranjenim končnim vhodom; naloženi dokumenti lahko odprejo ničelno-kopirne rezine virov samo za branje in poročajo statistiko pipeline na filter skozi preflight in optimizacijo tokov

Version 2.464.0

Added

• Naloženi obrazci lahko varno ovrednotijo mejene skripte izračunov in preverjanja brez aktivnega pogona JavaScript; anotacije RichMedia razkrijejo metapodatke poimenovanih virov, izluščevanje bajtov in ciljano čiščenje; sploščevanje XFA podpira SOM vezave indexed, wildcard, class in descendant ter mejene številčne funkcije FormCalc; povratni poti anotacij XFDF pa pokrivajo vsak podprt podtip anotacij skozi eno simetrično preslikavo

Version 2.463.0

Added

• Podpisovanje RSA-PSS CMS zdaj podpira nastavljivo sol ter notranje, zunanje ali Windows CNG podpisnike; izhod PDF/X preveri produkcijske pogoje, komponente ICC in nadzore overprint; naložene označene strani razkrijejo geometrijsko diagnostiko vrstnega reda branja; PDF Portfolio pa lahko avtorirajo in pregledajo zbirne sheme ter metapodatke na datoteko

Version 2.462.0

Added

• Naloženi AcroForms zdaj ovrednotijo vrstni red izračunov /CO, znova ustvarijo večvrstične, quadded, samodejno dimenzionirane in comb izglede, razrešijo stanja izgledov anotacij normal, rollover in down ter sploščijo izbrana polja le na njihove lastniške strani; sploščevanje, ki zaveda podpise, zavrne kršitve pravil DocMDP ali FieldMDP

Version 2.461.0

Added

• Izrisovanje naloženih strani zdaj uveljavi izolirane in knockout skupine prosojnosti, mehke maske alfa in luminoznosti z barvami ozadja in funkcijami transferja, popolne CharProcs Type 3 v njihovem trenutnem obsegu virov, matrike Form s polno obnovo grafičnega stanja ter dekodiranje vidne regije za obrezane slike, vključno z nativno razširitvijo regij JPEG 2000; DecodeLoadedImageRegion klicateljem razkrije točno pravokotno rastersko dekodiranje

Version 2.460.0

Added

• Izrisovanje naloženih strani zdaj predpomni ločeni stanji optional-content in barvnih intentov ICC, ponudi pravila ignore, bounded-report in strogi fallback za preskočene operatorje ali predmete ter objavi poenoteno telemetrijo pretečenega časa, vrha pomnilnika, dekodiranih bajtov, zadetkov in zgresitev predpomnilnika, števila predmetov, uspeha in preklica za nalaganje, izrisovanje, progresivne rezine in optimizacijo tokov

Version 2.459.0

Added

• BeginLoadedPageProgressiveRender dodaja nadaljujemo izrisovanje strani s proračuni pretečenega časa in vsebinskih operatorjev, dostopom do delne bitne slike, progress callbacki in izrecnimi stanji pavze, zaključka in preklica; primerki THPDFCancellationToken v lasti klicatelja zdaj sodelovalno prekličejo nalaganje dokumenta, sinhrono in progresivno izrisovanje, optimizacijo tokov, preflight preverjanje, podpisovanje PFX in podpisovanje iz trgovine certifikatov Windows

Version 2.458.0

Added

• ImmediateFlushLayout premakne dokončane tokove strani v s pomnilnikom podprto shrambo na datotekah za omejeno generiranje poročil; razporeditev odstavkov zdaj podpira omejitve keep-with-next, orphan in widow, bidi smer first-strong z izrecnimi preglasitvami, omejene diagnostike koordinat, podedovane dimenzije strani, pomožnike za semantične /P ter tipsko določene artefakte paginacije za glave, noge, vodne žige in številke strani

Version 2.457.0

Added

• SetFontFallbackChain in TextOutWithFallback dodata urejen izbira pisav, ki upošteva skripte, s preverjanjem pokritosti Unicode-skalarnih vrednosti in trajne diagnostike nerešenih glifov; navpično besedilo zdaj izpolnjuje popolne teky Identity-V z metrikami /DW2 in /W2, izpeljanimi iz tabel OpenType vhea, vmtx in VORG, kadar so na voljo

Version 2.456.0

Added

• HPDFEncodePredictor doda strogo kodiranje napovednikov TIFF ter fiksnih ali adaptivnih napovednikov PNG za pakirane, 8-bitne in 16-bitne vrstice rastra; ExtractLoadedImageToStream se izogne polnim bajtnim poljem za izvorne ali generično dekodirane podatkovne Jainke slik; OptimizeLoadedStreams selektivno ponovno stisne podprte družine filtrov prek medpomnilnikov prelivanja pomnilnik-na-disk in nadomesti le toke, ki dosegajo pozitiven prag prihranka

Version 2.455.0

Added

• DecodeLoadedStreamToStream zdaj sestavi naložene filtre PDF v omejen celevod, katerega zadnja stopnja zapisuje neposredno v tok klicatelja; DocumentDecodeBudgetBytes doda privzeti strop 1 GiB med neodvisnimi verigami, medtem ko varovalke števila filtrov, globine gnezdenja, cikličnih referenc in rekurzivnih tokov izpostavijo strukturirane diagnostike celevoda

Version 2.454.0

Added

• Veliki naloženi tokovi zdaj ostanejo na obsegih izvorne datoteke do mutacije in prelivajo prevelike spremembe v lastne začasne datoteke prek LoadedStreamMemoryThreshold; kompresirani člani objektnih tokov so indeksirani in materializirani po številki objekta ob prvi uporabi; LoadFromRandomAccessSource doda integracijo z HTTP-range in poljubno shrambo, s tokovnimi in objektno-predpomnilniškimi diagnostikami

Version 2.453.0

Changed

• Inkrementalna shranjevanja zdaj ohranjajo ID stalnega prikolnika prek vseh revizij, rotirajo le ID spremembe, ne izpustijo nobene pripete revizije, ko je naloženi graf predmetov nespremenjen, in izpostavijo odločitve o zlivanju hibridnih referenc prek GetLoadedXRefMergeInfo z izrecnimi števci prednosti tokov-xref, prekrivanja tabel in najnovejše revizije

Version 2.452.0

Added

• Dodano izvorni izhod PDF 2.0 ter avtorstvo PDF/A-4, PDF/A-4e, PDF/A-4f in PDF/UA-2, z revizijsko-zavestno XMP identifikacijo, strukturirnimi vlogami PDF 2.0, registracijo imenskih prostorov prek RegisterStructureNamespace in AddStructureElementNS, strogo validacijo strukture PDF/UA-2 ter profilno-nevtralnimi pripetimi datotekami prek AddPDFAssociatedFile

Version 2.451.0

Added

• DetectFacturXInvoice zdaj izpostavi MIME tip dekodirane primarne priponke in vezan URI imenskega prostora XMP, ValidateFacturXInvoice pa navzkrižno preveri natanko FileSpec, ki si ga delita /AF kataloga in imensko drevo EmbeddedFiles, imeni /F in /UF, MIME tip XML, DocumentType XMP in imenski prostor specifičen za profil Factur-X ali ZUGFeRD prek štirih namenskih zastavic težav

Version 2.450.0

Added

• Ugotovitvi Preflight JSON, HTML in v slogu verePDF zdaj nosijo stabilne vrednosti ruleId z imenskim prostorom ter strojno-bralljive lokacije z logičnim obsegom, potjo, PDF ključem in natančno številko objekta, indeksom strani ali bajtnim odmikom, ko so na voljo; poročila JSON tudi izpustijo dokumentirana preslikave ISO spec in ostanejo veljavna, ko polja vsebujejo več ugotovitev

Version 2.449.0

Added

• SanitiseLoadedDocument zdaj uveljavi politike samo-JavaScript, aktivne-vsebine ali strogega dokumenta-nezaupanja na naložen PDF, poroča o odstranjenih dejanjih in vsebinah, za neznane vrste dejanj spodleti zaprto, odstrani nedosegljive predmete prek omejene ciklično-varne skoraj-linearne prečrtave, strne številke živih predmetov in atomarno nadomesti vir pri shranjevanju na mestu

Version 2.448.0

Added

• Upodabljalnik naloženih strani zdaj izvaja barvne in neobarvane tlakovalne vzorce ter aksialne in radialne senčilne vzorce za polnila in poteze, vključno z matrikami vzorcev, dedovanjem odtenkov, izrezom poti, predpomnjenim tokeniziranjem vsebine, gnezdenim obnavljanjem grafičnega stanja ter omejenimi števci rekurzije in tlakov za sovražne vire

Version 2.447.0

Added

• Dodan nastavljiv strop 256 MiB na-verigo DecodeBudgetBytes, ki agregira izhod gnezdenih stopenj Flate, LZW, ASCIIHex, ASCII85, RunLength in slikovnih napovednikov, preden dosežejo pomnilnik, z diagnostikami GetLastDecodeBudgetInfo in ničlo kot izrecen način neomejenosti

Version 2.446.0

Added

• Dodan izbiren LinearizeOutput za hiter spletni pregled, ki izpusti slovar parametrov linearizacije v prvih 1024 bajtih, namizne tabele namigov prve strani in deljenih predmetov, od odvisnosti urejene odseke strani in dve združljivosti tabel navzkrižnih referenc, pri tem ohrani neposreden izhod datoteke in toka ter zanesljivo zaznavo ponovnega nalaganja

Version 2.445.0

Added

• Naloženi PDF-ji zdaj uporabljajo omejeno obnovitev navzkrižnih referenc po poškodovanih deklaracijah startxref ali neuporabnih podatkih xref, tako da najprej prerazporedijo veljavno tabelo ali tok in nato znova zgradijo validirane odmike neposrednih predmetov s prednostjo najnovejše definicije, filtriranjem lažno-pozitivnih gnezdenih predmetov, nastavljivimi proračuni pregleda in predmetov, omejenimi poskusi sidra xref, strukturiranimi diagnostikami in shranjevanjem s polno prepisavo

Version 2.444.0

Added

• AnalyzeLoadedSignatureRevisions zdaj razvrsti vsako inkrementalno revizijo po izbranem podpisu kot validacijo z dolgim rokom, izpolnjevanje in podpisovanje obrazcev, pripombe ali druge spremembe, poroča o spremenjenih in sproščenih predmetih ter imenih polj ter neodvisno ocenjuje skladnost DocMDP in FieldMDP prek tradicionalnih, tokovnih, hibridnih in kompresijsko-objektnih zgodovin xref

Version 2.443.0

Added

• VerifyLoadedSignatureWithTrust in HPDFValidateCMSCertificatePath zdaj gradita poti potrdil podpisnika do s klicateljem priskrbljenih sidrišč zaupanja in preverjata podpise potrdil, obdobja veljavnosti, osnovne omejitve, omejitve dolžine poti in Key Usage
• Validacija preklica brez povezave zdaj preverja podpise OCSP in CRL, pooblastilo odzivnika, identiteto potrdila, svežino statusa in čase preklica ter pri tem daje prednost dokazom VRI za posamezni podpis pred DSS na ravni dokumenta, dokazi klicatelja in CRL-ji CMS
• THPDFSignatureInfo.CertificateValidation poroča o zaupanju, dolžini poti, sidrišču zaupanja, času ocene, statusu preklica in viru, času preklica ter težavah validacije neodvisno od kriptografskega svValid

Version 2.442.0

Added

• Preverjanje naloženih podpisov zdaj kriptografsko validira časovne žige dokumentov RFC 3161 glede na /ByteRange PDF-ja in žetone časovnega žiga podpisa glede na vrednost nadrejenega podpisa CMS, THPDFSignatureInfo.Timestamp pa izpostavi vrsto časovnega žiga, status, politiko, odtis sporočila, serijsko številko, čas generiranja, natančnost, urejanje, nonce, identiteto TSA in podrobnosti potrdila podpisnika žetona

Version 2.441.0

Added

• Preverjanje naloženih podpisov zdaj podpira podpise CMS RSA-PSS s SHA-1, SHA-256, SHA-384 ali SHA-512 in validira izrecne parametre hash, MGF1 hash, dolžine soli in polja priklopnika
• THPDFSignatureInfo zdaj poroča o SignedRevisionLength in UnsignedTrailingBytes, svInvalidByteRange pa identificira strukturno nevarne obsege podpisov PDF

Changed

• Preverjanje podpisa zdaj obnovi položaj toka klicatelja, primerja varnostno-občutljive bajtne zaporedja brez zgodnjih izhodov in poroča o popolnih parametrih algoritma RSA-PSS

Fixed

• Preverjanje CMS zdaj zavrne prekrivajoče, zunaj-mejne, prirezane ali dvoumne bajtne obsege in validira popoln identifikator algoritma RSA PKCS#1 DigestInfo namesto da bi sprejelo poljubno bitno velikosti oktetno vrsto

Version 2.440.0

Fixed

• Registracija pisave Unicode zdaj dodeli celoten medpomnilnik za napredke glifov pred branjem metrik pisave, kar preprečuje kršitve dostopa v delovnih tokovih oblikovanja OpenType in podmnožičenja pisav
• GetWideTextWidth zdaj tolmači predpomnjene napredke Unicode v enotah em in ob padcu na meritev platforme, kadar metrika glifa ni na voljo, s čimer obnavlja pravilno skalirane širine za prelom in razporeditev
• BeginIncrementalUpdate zdaj označi naložene predmete kot čiste pred sledenjem sprememb klicatelja, tako da se nespremenjeni predmeti ne ponovno zapišejo in da se osiroteli slovarji šifriranja pravilno sprostijo v pripeti razdelek navzkrižnih referenc

Version 2.439.0

Added

• HPDFDecodePredictor in HPDFTryDecodePredictor ponujata omejeno dekodiranje za napovedovanje TIFF 1, 2, 4, 8 in 16-bitno ter vseh pet filtrov vrstic PNG, s strogim preverjanjem vrstic in izvedljivimi diagnostikami
• TPDFLZWDecompressor doda neposni izhod toku, vnovično uporabne metode dekodiranja brez sprožanja izjem, nastavljive omejitve izhoda in zahteve po zaključevalniku toka ter statistiko širine kode, slovarja, ponastavitve, razširjanja in izhoda za posamezno dekodiranje

Changed

• Dekodiranje LZW zdaj uporablja zvezno areno fraz, podpira oba načina PDF EarlyChange in obe vrstni redi polnjenja bitov, obravnava ponastavitve clear in razširjanje KwKwK strogo ter povečuje izhod nizov geometrijsko
• Izvleka naloženih slik Flate in LZW zdaj upošteva geometrijo napovednika DecodeParms in EarlyChange, uporablja varno rastriranje glede preliva in si deli isto izvedbo napovednika kot dekodiranje tokov xref

Fixed

• Dekodiranje Flate s parametri napovednika zdaj bere iz toka razširjanja namesto kopiranja stisnjenih vhodnih bajtov v stopnjo napovednika
• Nepravilne kode LZW, prirezane vrstice, neveljavne oznake vrstic PNG, nemogoča geometrija napovednika in prekomerno razširjanje zdaj deterministično spodletijo namesto da bi vrnili delne ali še vedno stisnjene slikovne podatke

Version 2.438.0

Fixed

• THPDFViewer se zdaj prevede v okoljih Delphi XE2 do XE8, kjer WM_DPICHANGED manjka v Winapi.Messages; konstanta sporočila DPI na monitor je zdaj definirana lokalno za orodjarne starejše od Delphi 10 Seattle, s čimer obnavlja gradnje DCU preizkusne knjižnice TRIAL za RAD Studio XE2..XE8, ki so se prekinile z E2003 Undeclared identifier

Version 2.437.0

Changed

• GetWideTextWidth zdaj meri besedilo Unicode iz predpomnilnika napredkov širine na kodočko, enkrat naseljenega iz tabele pisave hmtx, namesto krožnega potovanja CreateCompatibleDC + GetTextExtentPoint32W ob vsakem klicu -- 10- do 100-kratno pohitritev za prelom besed, poravnavo in merjenje celic tabele pri dolgih dokumentih Unicode, s prosojnim padcem na zapuščinsko pot GDI, ko nobena pisava Unicode ni registrirana

Version 2.436.0

Fixed

• Vdelana pisava /FontDescriptor /CapHeight zdaj uporablja resnično metriko poteze otmsCapEmHeight namesto kodirane konstante, s padcem na ~70 % vzpona za poteze, ki poročajo ničlo

Version 2.435.0

Fixed

• Vdelane pisave Unicode zdaj ob podmnožičenju obdržijo glife, ki jih ustvari oblikovanje OpenType (predstavitvene oblike arabščine, ligature, kontekstne alternative) -- množica FUnicodeExtraUsedGlyphs, ki jo zabeležita MarkUnicodeGlyphUsed / EnableShapingFeatureForSubset, je bila zapisana, a je podmnožičevalec nikoli ni upošteval, zato so ti glifi v izhodu padli na .notdef

Version 2.434.0

Added

• THPDFWeightedCache doda nepovišujoč vpogled, logično iskanje, izrecno odstranjevanje in prenos lastništva, takojšnje prirezovanje proračuna, statistiko stopnje zadetkov in življenjskega cikla ter pretakovne vsebinske ključe SHA-256

Changed

• Veliki urejeni CMap-ji ToUnicode in CID zdaj uporabljajo logaritemsko iskanje znakov in obsegov, natančno ohranjajo eno- do štiribajtne kodne prostore, izolirajo skupne razčlenjene zemljevide po korenu vira in povečujejo shrambo razčlenjevalca geometrijsko
• Trajni predpomnilnik upodobljenih strani zdaj atomsko zapisuje podatke PNG in indeksa, sledi nedavnosti na ravni strani, takoj uveljavlja zmanjšane omejitve in obnavlja zastarele indekse, opuščene začasne datoteke, manjkajoče mape in neindeksirane mape dokumentov

Fixed

• Razčlenjevanje CMap zdaj pravilno obravnava lihe šestnajstiške nibble, in zavrne nepravilne šestnajstiške podatke, neveljavne ali prelivajoče se obsege, negativne cilje CID ter neomejena izrecna preslikave, medtem ko deterministično nadomešča neveljavna zaporedja nadomestnih znakov UTF-16
• Nadomeščanje oteženega predpomnilnika ne sprosti več predmeta, ko je ista instanca ponovno vstavljena pod svoj obstoječi ključ, pokvarjeni vnosi PNG v diskovnem predpomnilniku pa se po neuspeli dekodirki odstranijo namesto da bi spodleteli ob vsakem poznejšem iskanju

Version 2.433.0

Added

• Preverjanje naloženih podpisov zdaj podpira podpise CMS ECDSA P-256, P-384 in P-521 s SHA-1, SHA-256, SHA-384 ali SHA-512, vključno z izbiro podpisnika izdajatelj-in-serijska in SubjectKeyIdentifier, strogo preverjanje podpisov DER ter razširjene diagnostike algoritmov in krivulj
• Upravljanje barv ICC zdaj preverja profile ICC v2/v4, sklepa in preverja števila komponent, odstranjuje podvojene registrirane profile, pretvarja ICCBased vektorske barve in surove slikovne vzorce v sRGB s podporo namere upodabljanja ter ohranja alternativni barvni prostor PDF kot nadzorovan padec

Version 2.432.0

Added

• THPDFTableCell zdaj podpira slikovne celice (ImageIndex + ImageAspect skalirata registrirano sliko na širino stolpca z poravnavo H/V) in celice HTML (IsHTML prikaže besedilo celice prek TextOutHTML za oznake vgrajene krepko/barva/povezava/pod-/nadpis), kar ustreza raznolikosti vsebine celic, ki naj bi jo nosil izvoz mreže

Version 2.431.0

Added

• Nov pogon razporeditve in upodabljanja THPDFTable (enota HPDFTable) razporedi tabele iz razglašenih širin stolpcev in vrst, z besedilom, poravnavo, barvo in preglasitvami pisave na celico, združevanjem ColSpan / RowSpan, samodejnim prelomom besed z izmerjenimi višinami vrstic, ozadji glave in zebrastih prog ter samodejnim nadaljevanjem preloma strani, ki ponavlja pas glave na vsaki strani -- vse to poganja obstoječe risalne primitive THPDFPage, tako da proizvajalci ne rišejo celic več ročno z Rectangle in TextOut

Version 2.430.0

Changed

• Obdelava toka vsebine in urejanje naloženih strani se zdaj bolj učinkovito skalira pri velikih delovnih obremenitvah besedila in poti, ohranja dopolnilno-ravenski Unicode in semantiko poti PDF, razveljavi predpomnilnike strani po mutacijah in dokonča zapise v tokove, ki sprejemajo delne medpomnilnike

Version 2.428.0

Added

• THPDFPage.TextOutHTML dobi preobremenitev za prelom besed, ki sprejema MaxWidth in lomi dolge vrstice na mejah besed, plus oznake vdelanih hiperpovezav (<a href>) in podpisanim/nadpisanim (<sub>/<sup>); hiperpovezave se rišejo modro in podčrtano in registrirajo klikljivo opombo URI

Version 2.427.0

Changed

• Zaporedni besedilni nizi, ki si delijo isto pisavo in velikost, ne ponovno izsevajo operatorja Tf ob vsakem klicu, s čimer krčijo tokove vsebine v dokumentih, bogatih s pisavami (tabele, odstavki), medtem ko jih še vedno ponovno izsevajo po obnovi grafičnega stanja (Q), kjer PDF to zahteva
• Aproksimacija elipse v THPDFPage zdaj uporablja standardno konstanto kubične-Bézier-kappa 0.5522847498, kar se ujema z vsemi drugimi implementacijami elipse in kroga v enoti in odstranjuje majhno od radijusa odvisno odstopanje, ki ga je proizvedla prejšnja aproksimacija 11/20

Version 2.426.0

Added

• Pregledovalnik zdaj predgreje predpomnilnik upodobljenih strani za strani, sosednje tisti, ki je bila pravkar prikazana, z uporabo niti v ozadju pri enakem DPI, tako da naslednji obrat strani zadane predpomnilnik namesto sinhronega ponovnega upodabljanja; nova lastnost PrefetchRadius nadzoruje, koliko strani na vsaki strani se predgreje (0 jo onemogoči)

Version 2.425.0

Added

• Upodobljevalnik naloženih strani zdaj dekodira in riše vdelane slike (BI/ID/EI) namesto da jih preskoči, razširja skrajšane pare ključ/vrednost vdelane slike in surove bajte v času tokenizacije ter postavlja rezultat skrez enako preslikavo CTM enotskega kvadrata, uporabljeno za XObject-e slik

Version 2.424.2

Changed

• Predpomnilnik diska upodobljenih strani zdaj zbere vse datoteke strani v enem pregledu mape in izloči prelivajoči se rep v enem prehodu, s čimer nadomešča prejšnjo zanko ponovnega pregleda-pri-izločanju, ki je tekla v kvadratnem času glede na število strani na dokument
• Deduplikacija slik zdaj pomni SHA-256 vsakega shranjenega toka slike in primerja zgoščene vrednosti pred obhodom bajtov, tako da dodajanje iste velike slike mnogim stranem ne ponovno bere vsak prej shranjen tok ob vsakem vstavljanju

Version 2.424.1

Changed

• Uteženi predpomnilnik dekodiranih slik in podmnožičnih pisav zdaj razrešuje poizvedbe prek zgoščenega indeksa in vzdržuje vrstni red nedavno uporabljenih prek indeksno osnovanega dvojno povezanega seznama, s čimer spremeni vsak Get, Put in povišanje aktualnosti iz premika polja O(n) v O(1) delo, tako da upodabljanje velikih večslikovnih dokumentov ne degradira več, ko se predpomnilnik polni

Version 2.424.0

Changed

• CompressLoadedDocument zdaj upošteva CompressionLevel, obdeluje izvorne tokove v omejenih kosi, ohranja izvorno koristno obremenitev, ko stiskanje je ne zmanjša, varno sprošča zamenjane tokove in označuje transformirane objekte toka kot umazane, tako da SaveLoadedDocument vztrajno shrani rezultat namesto da vzame pot kopiranja nespremenjene datoteke.DecompressLoadedDocument uporablja enako lastninsko-varno pot pretakanja, odstranjuje identitetne /DecodeParms in pusti tokove prediktorja TIFF ali PNG stisnjene, dokler stopnja prediktorja ne more biti varno dekodirana

Version 2.423.0

Added

• THPDFPage.AddCertificationSignatureField in ConfigureCertificationSignature zdaj ustvarjata edinstven podpis za certifikacijo DocMDP z vsemi tremi ravnmi dovoljenj in pripadajočo povezavo Catalog /Perms /DocMDP, medtem ko AttachSignatureFieldLock oddaja posredne politike SigFieldLock in pripadajoče sklice FieldMDP za obsege polj All, Include ali Exclude.THotPDF.GetLoadedSignaturePermissions izvaja omejen strukturni pregled istega grafa dovoljenj, vključno z zahtevano neposrednostjo, korensko povezavo, ujemanje politik in diagnostiko, ne mešajoč strukture politike s kriptografsko veljavnostjo ali skladnostjo s poznejšimi revizijami

Version 2.422.0

Added

• Watermark / header / footer placeholder tokens now resolve document metadata: <%Author%> / <%Title%> / <%Subject%> / <%Keywords%> / <%Producer%> are substituted alongside the existing <%PageNo%> / <%TotPage%> / <%FileName%> / date-time tokens when the new HPDFReplaceWatermarkPlaceholders overload is given a THPDFPlaceholderDocInfo record. The legacy 4-parameter signature stays for callers that only need the page / file / date-time subset

Version 2.421.0

Added

• THPDFActionBuilder.GoToEmbeddedNamedDestination and GoToEmbeddedPage create PDF 1.6 GoToE actions with standards-valid parent, EmbeddedFiles name-tree, attachment-annotation, and nested /T target paths, while preserving named or explicit destinations, optional root file specifications, NewWindow, action chaining, and PDF/A/PDF/X restrictions
• Loaded action inspection now recognises all 18 ISO 32000-1 action subtypes and returns ordered, non-executing THPDFLoadedActionInfo snapshots from catalog /OpenAction and /AA, page /AA, annotation /A and /AA, AcroForm field /AA, and outline /A sources. Dictionary and array /Next forms preserve execution order, while malformed entries, shared nodes, cycles, excessive depth, and excessive node counts stop safely with diagnostics
• Annotation action and JavaScript trigger enums now include page-open /PO, page-close /PC, page-visible /PV, and page-invisible /PI events with the required PDF 1.5 version negotiation

Version 2.420.0

Added

• Content-stream device stage 3 closes the abstraction loop: IHPDFContentDevice gains DrawXObject / DrawShading / ApplyExtGState for the Do / sh / gs operators, and the shared interpreter now dispatches them. Do is gated on cdcNeedImages so text/enum devices skip the heavy image decoding; sh and gs dispatch unconditionally. The renderer's ExecuteViaDevice path can now paint the full operator set (paths + colours + text + images + shading + ExtGState), observably equivalent to the legacy HandleOperator path. The ApplyExtGState nested procedure was promoted to a class method (DoApplyExtGState) so the device path shares it without duplication; method-resolution clauses route the three new interface entries to Dev* helpers without colliding with the pre-existing private helpers
• Document-content observer pattern: THotPDF.OnLoadedDocumentModified event fires from InvalidateRenderedPageCache (PageIndex = -1, whole document) and InvalidateRenderedPageCachePage (a specific page) so attached viewers refresh automatically. THPDFViewer subscribes in SetDocument and unbinds on detach / opRemove, calling RefreshDocument when the current page (or the whole document) is affected. Multi-view sync (several viewers on the same THotPDF) now works without each caller invoking RefreshDocument by hand

Version 2.419.0

Added

• Content-stream device abstraction stage 1: IHPDFContentDevice gains the text callback surface (BeginText / EndText / UpdateFont / UpdateCharSpace / UpdateWordSpace / UpdateHorizScale / UpdateLeading / UpdateRenderMode / UpdateRise / TextMove / TextSetMatrix / TextNewLine / ShowText / ShowTextArray) mirroring the PDF text state machine; the shared HPDFInterpretContentStreamDevice dispatcher now forwards BT/ET/Tf/Tc/Tw/Tz/TL/Tr/Ts/Td/TD/Tm/T*/Tj/TJ/'/" to the device when it declares cdcNeedText
• THPDFTextExtractDevice is a concrete device that maintains the text matrices and emits one THPDFGlyphRecord per char code (decoded via an injected IHPDFFontResolver) — observably equivalent to HPDFInterpretTokens output but produced through the device interface so the same interpreter loop drives text extraction, path enumeration and rendering
• HPDFExtractGlyphsViaDevice convenience function wraps the text-extract device + shared interpreter in one call; the existing HPDFInterpretContentStream / HPDFInterpretTokens stay untouched for current callers
• Content-stream device abstraction stage 2: THPDFPageRenderer now implements IHPDFContentDevice so the shared dispatcher can drive it through the same abstract interface. ExecuteViaDevice is the opt-in device-driven render entry; the production Execute path keeps its built-in ExecuteStream / HandleOperator dispatch, so existing behaviour is unchanged. The renderer carries every piece of state the callbacks need (graphics-state stack, font cache, GDI handles, four paint bridges) and each device method is a thin delegation, so the device-driven route is observably equivalent to the legacy route

Version 2.418.0

Added

• DecompressLoadedDocument is the inverse of CompressLoadedDocument: it walks every indirect stream carrying a /Filter /FlateDecode (name or single-element array form), inflates the payload back to raw bytes, strips the /Filter entry and fixes up /Length; streams with other filters (CCITT / DCT / JBIG2 / JPX / Crypt / RunLength) and multi-filter chains are left untouched, and corrupt Flate payloads are skipped rather than discarded
• EnumLoadedPageElements now returns the full path geometry per ekPath element, not just the bounding box: two new fields PathPoints: array of THPDFPathPoint and PathIsCurve: array of Boolean are index-parallel and carry each segment’s user-space control points with a flag distinguishing cubic bezier segments from linear ones (m / l / re edges). Callers that only read the bbox are unaffected; CAD drawing extraction, table-line detection and vector-replay consumers can now rebuild the exact curves the page drew
• New HPDFContentDevice unit introduces the content-stream device abstraction (stage 0): an IHPDFContentDevice interface with a TInterfacedObject base implementation (mirroring the proven IHPDFFontResolver pattern), a shared HPDFInterpretContentStreamDevice dispatcher that today covers the path / colour / state operator subset, and a concrete THPDFPathEnumDevice that collects one record per painted path with full point geometry. This breaks the three-way duplication between HPDFContentStream, HPDFPageRenderer.HandleOperator and HPDFCollectPathElements; stage 1 will add text/image callbacks and stage 2 will migrate the renderer onto the device

Changed

• HPDFPageRenderer header comment updated: the “TrueType/CFF glyph-outline rendering out of scope” note was stale — embedded glyph outlines have been active since v2.342.0 (DrawTextRun calls THPDFEmbeddedTTF.DrawGlyph / THPDFEmbeddedCFF.DrawGlyph with real quadratic/cubic bezier paths; GDI TextOutW is only the fallback for unmapped characters). CID fonts via Identity-H + CIDToGIDMap are covered too

Version 2.417.0

Added

• Five named loaded-document annotation helpers close the discovery gap where the existing ASubtype-parameterised helpers (AddLoadedHighlightAnnotation, AddLoadedSquareAnnotation, AddLoadedPolygonAnnotation) already produced these subtypes but callers had to know the secret: AddLoadedCircleAnnotation, AddLoadedUnderlineAnnotation, AddLoadedStrikeOutAnnotation, AddLoadedSquigglyAnnotation and AddLoadedPolylineAnnotation -- once landed, the XFDF interchange layer (which already recognises these subtype strings) picks them up for free
• AddLoadedFileAttachmentAnnotation embeds an arbitrary file payload (PDF, image, office doc) as a FileAttachment annotation with the full three-object graph the spec requires: annotation dict / Filespec dict / EmbeddedFile stream with /Subtype MIME, /Params /Size and creation/modification dates; the new THPDFFileAttachmentIcon enum (faiPushPin / faiGraph / faiPaperclip / faiTag) selects the standard pin icon viewers render
• THPDFFieldValidationOptions record + HPDFDefaultValidationOptions expose the full Adobe AF* parameter surface (Decimals / SeparatorStyle / NegativeStyle / CurrencySymbol / CurrencyBefore / RangeMin / RangeMax) that the Acrobat JS helpers accept; the existing ApplyLoadedFieldValidation(FieldIndex, Kind, DateFormat, Mask) signature is retained as a backward-compatible overload that forwards into the new record overload
• ApplyFieldValidation and ApplyFieldCalculation bring the same Format+Keystroke+Validate / Calculate template to producer-mode fields (looked up by name) so newly-created forms get the same AF* scripts as loaded ones, without writing JavaScript by hand
• CopyLoadedAnnotationsFromDocument deep-copies annotations from another loaded document directly PDF→PDF (no XFDF intermediary): reuses CopyObject to rebuild indirect references, streams and /AP appearances, rewrites /P to the destination page, optionally remaps /IRT reply chains via /NM, optionally clears /T author, and accepts a THPDFAnnotCopyFilterEvent callback for selective copy -- covers Widget/PrinterMark/TrapNet/Watermark/3D/Screen that the XFDF layer does not reach

Fixed

• ApplyLoadedFieldValidation wrote the Format JavaScript under trigger key /X (annotation-exit), which Acrobat never fires for form fields -- the script was effectively dead. Corrected to /F so the format actually runs on field commit
• ApplyLoadedFieldValidation emitted AFSpecial_FormatEx for the ArbitraryMask kind, a function that does not exist in the Adobe AF* set; only AFSpecial_KeystrokeEx(mask) is real, so the Format pass is dropped and enforcement happens at keystroke time as the spec intends
• ApplyLoadedFieldValidation unconditionally appended AFRange_Validate(true,true,0,9999999) for numeric kinds, imposing a hidden 0..9999999 range the caller never asked for; range validation now only fires when the caller explicitly sets RangeMin or RangeMax in the options record
• ApplyLoadedFieldValidation wrapped the ArbitraryMask in a JavaScript regex literal and emitted a hand-rolled validate script, but the mask is a literal format pattern ("AAA-9999"), not a regex; the validate pass is now removed and the keystroke mask carries the enforcement alone
• ApplyLoadedFieldCalculation now prepends a Format+Keystroke number-formatting pair before the AFSimple_Calculate script so the aggregated result renders as a plain number, matching common PDF viewer behaviour (without it the Calculate value displays raw)

Version 2.416.0

Added

• THPDFViewer now scrolls on hover-wheel without needing a click first: a thread-local WH_MOUSE hook (new HPDFMouseWheelHook unit, auto-installed from its initialization section) routes WM_MOUSEWHEEL to whichever THPDFViewer instance sits under the cursor, matching the behaviour of every native Windows PDF reader
• THPDFViewer is now Per-Monitor DPI v2 aware: new HPDFPerMonitorDPI unit resolves user32!SetProcessDpiAwarenessContext (Win10 1703+, DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2) at runtime and falls back through shcore!SetProcessDpiAwareness (Win8.1+) and user32!SetProcessDPIAware (Vista+); the legacy HPDFEnablePerMonitorDPI is retained as an alias that forwards to the new layered helper
• THPDFViewer.RenderAtPhysicalDPI published property (default True) makes the rendering DPI baseline track the monitor’s physical DPI via HPDFGetWindowDPI, so 100% zoom on a 144 DPI panel renders at native resolution; a new WMDpiChanged handler re-renders on cross-monitor moves; set False to preserve the historical 96-DPI logical baseline
• Optional persistent disk tier for the rendered-page cache: setting THotPDF.RenderCacheFolder to a writable folder path persists every page rendered by RenderLoadedPageToBitmapCached as a PNG under <folder>\<SHA256-prefix-16>\<page>@<dpi>.png, so re-opening the same document later is instant; RenderCacheMaxDocuments (default 20) and RenderCacheMaxBytes (default 500 MB) bound the footprint with a true LRU eviction; the lookup order becomes in-memory → disk → rasterise, with disk hits back-filling the in-memory tier
• THotPDF constructor now activates the highest available per-monitor DPI tier at first instantiation in runtime mode (skipped in csDesigning), so hosts that never call HPDFEnablePerMonitorDPI explicitly still get crisp rendering on high-DPI displays

Version 2.415.0

Added

• HPDFParsePDFDate now honours the timezone suffix (+HH’mm, -HH’mm, or Z) and returns a UTC TDateTime; HPDFFormatPDFDate is the inverse formatter producing D:YYYYMMDDHHmmSS+00’00
• GetLoadedExtGStateInfo reads LW / LC / LJ / ca / CA off a named ExtGState entry on a loaded page; GetLoadedShadingCount / GetLoadedShadingName and GetLoadedPatternCount / GetLoadedPatternName enumerate the /Shading and /Pattern resource sub-dictionaries
• ReplaceLoadedPage swaps a page’s contents from a source document, SwitchLoadedPages exchanges two pages, ReverseLoadedPages flips page order in a range, ExtractLoadedPagesToPDF saves a page range as a standalone PDF, and GetLoadedPageInheritedBox resolves inherited page boxes through the page-tree parent chain
• GetLoadedFileSpecInfo reads embedded-file metadata (name / description / MIME / size), GetLoadedEmbeddedFileMIME returns the /Subtype, GetLoadedEmbeddedFileChecksum returns the /Checksum digest, and THPDFNameTreeType + GetLoadedNameTreeRootCount provide a typed enumeration of all nine name-tree categories
• HPDFEnablePerMonitorDPI dynamically enables per-monitor DPI awareness; THPDFBackgroundRenderer renders pages on a background thread with a request queue and cancellation; GetLoadedPageContentStreamCount reports whether /Contents is a single stream or an array; GetLoadedXMPValue extracts a namespace-qualified XMP property; and GetLoadedDocumentReport aggregates all diagnostic info into a JSON string

Version 2.414.0

Added

• THPDFActionBuilder.URIWithIsMap creates a URI action with /IsMap true for server-side image-map tracking, where the previous URI builder only set the bare /URI string
• AddLoadedCaretAnnotationEx adds an optional paragraph symbol (/Sy P) to caret annotations, the visual marker editors use for insert-tracking
• GetLoadedAnnotationDA parses a FreeText annotation’s /DA string into font name, font size and RGB colour components, so a caller can inspect or clone the appearance without re-parsing the raw operator string

Version 2.413.2

Fixed

• The C++Builder package now links without requiring crypt32.lib: HPDFWinCertSigner loads the CryptoAPI entry points (CertOpenStore, CertEnumCertificatesInStore, CryptAcquireCertificatePrivateKey, and the Crypt hash helpers) dynamically via LoadLibrary/GetProcAddress, matching the pattern already used by HPDFDoc.EnumerateSystemCertificates

Version 2.413.1

Fixed

• Type1 and CFF font handling now preserves parser ownership across repeated stream checks and multi-font FontSets, returns stable glyph names and bounding boxes, keeps fractional font sizes and DPI scaling, and avoids composite-glyph and private-dictionary memory errors
• The C++Builder AddDelPages, HugeFileBenchmark, and Security demos now compile for Win64, while page-operation and preflight examples release partially constructed objects safely

Version 2.413.0

Changed

• The Delphi E-Invoice demo now validates required invoice fields, amount and VAT ranges, currency syntax, and embedded XML profile compatibility before writing output
• The attach workflow now rejects identical source and output paths, reports the detected XML guideline, and combines container, PDF/A, XML profile, signature, visual consistency, Schematron, and external-report checks into one verdict

Fixed

• E-Invoice generation and manual validation no longer report a successful result when an enabled validation layer finds issues
• Loaded electronic-invoice summaries now read the invoice number, seller, and buyer from their correct XML aggregates, preventing false visible-text consistency findings

Version 2.412.0

Changed

• All Delphi demos now resolve no-argument relative assets and outputs from their executable directory while preserving the caller working directory for command-line paths
• Delphi command-line demos now provide stricter argument validation, failure exit codes, deterministic comparison inputs, and generated-document verification across page copying, text extraction, preflight, optimisation, inspection, and in-memory workflows

Fixed

• Delphi demos no longer risk page-list overflow above 100 selected pages, create an extra blank page in the add-page workflow, close unrelated PDF viewer windows, or report failed preflight checks as successful
• The E-Invoice attach workflow now rebuilds its current page correctly when a single-page source is converted, signed, and stripped of the temporary initial blank page

Version 2.411.0

Added

• E-Invoice demo: new "Attach to existing PDF" mode converts an existing PDF to PDF/A-3, embeds a Factur-X/ZUGFeRD invoice XML as a document-level attachment, and optionally signs the result with a PFX certificate

Version 2.410.0

Added

• Loaded AcroForm fields can now update flags, maximum length, text justification, per-widget rectangles, rotation, border colour, and visible or printable state, with widget enumeration for radio groups and other multi-widget fields

Fixed

• Loaded field tooltip, border-width, and background-colour edits now mark the correct field or widget dictionaries dirty, apply visual properties to every widget, and invalidate only the affected page render cache

Version 2.409.0

Added

• ActivateLoadedLinks turns bare HTTP, HTTPS, FTP, www., mailto:, and email text into positioned borderless URI annotations across a selected page range

Changed

• Loaded link creation now persists reliably in incremental updates, while automatic activation snapshots existing links once per page, skips matching URI and rectangle pairs, and invalidates each changed page cache only once

Version 2.408.0

Added

• Loaded annotations can now update their title, unique name, modification date, normalised rectangle, and standard solid, dashed, bevelled, inset, or underlined border style

Fixed

• Loaded annotation edits now mark the annotation object dirty for incremental saves, while visual edits invalidate only the affected page's cached renders and retain other warm pages

Version 2.407.0

Added

• THPDFViewerModel stores, clips, enumerates, removes, and clears persistent page-region highlights without modifying the PDF
• THPDFViewer adds a highlight interaction mode with captured marquee dragging, rotation-aware PDF coordinate recovery, configurable colour, and an OnMarqueeSelect callback

Fixed

• Viewer coordinate transforms now retain the actual render DPI below 12 and above 2400, keeping selections aligned at the 5% and 6400% zoom limits

Version 2.406.0

Added

• THPDFViewerModel creates rotation-aware page thumbnails directly at a DPI selected for caller-supplied pixel bounds, avoiding full-size intermediate page bitmaps
• Viewer-model page prefetch warms a centred neighbourhood asynchronously while limiting the scheduled pages to the rendered-page cache capacity

Version 2.405.0

Added

• THPDFPageLayout now supports PDF 1.5 plTwoPageLeft and plTwoPageRight cover-spread layouts with automatic version negotiation and strict-version fallback

Fixed

• BeginDoc now preserves the caller-selected page layout instead of always replacing it with plOneColumn

Version 2.404.0

Added

• THPDFViewerModel creates rotation-aware snapshots of bounded PDF page regions without allocating a full-page bitmap

Version 2.403.0

Added

• THPDFViewerModel converts points bidirectionally between PDF page space and rotation-aware Viewer coordinates at a caller-selected DPI

Version 2.402.0

Changed

• Viewer zoom commands now use stable standard levels from 5% through 6400%, including reversible navigation around arbitrary custom values

Version 2.401.0

Added

• THPDFViewer adds Ctrl+wheel zoom, vertical wheel scrolling, and Shift+wheel horizontal scrolling without rerendering for scroll-only input

Version 2.400.0

Added

• THPDFViewer adds keyboard page navigation, scrolling, zoom shortcuts, and Actual Size, Fit Width, or Fit Page mode selection

Version 2.399.0

Added

• THPDFViewer draws or prints the rotation-aware current view with deterministic aspect-preserving fit and centred placement

Version 2.398.0

Added

• THPDFViewerModel creates caller-owned vector EMF snapshots of any loaded page or the current view, including non-destructive 90-degree view rotation

Version 2.397.0

Added

• THPDFViewerModel saves rotation-aware page snapshots as BMP, JPEG, or PNG to files and caller-owned streams with configurable JPEG quality

Version 2.396.0

Added

• THPDFViewer.ResetView restores Actual Size, clears view rotation and search highlights while preserving the current page, with matching reset and rotation actions and batched single-render updates

Version 2.395.0

Added

• THPDFViewer and THPDFViewerModel add clockwise, counter-clockwise, and resettable view rotation that also applies to caller-owned page snapshots without changing the PDF page

Version 2.394.0

Added

• THPDFViewerModel can create caller-owned page snapshots and save the current page as BMP without constructing a Viewer control

Version 2.393.0

Added

• THPDFLoadedFormField now exposes field flags, MaxLen, page index, widget bounds, and common Required, NoExport, Multiline, and Password states
• GetLoadedFormFieldMaxLength provides direct indexed access to loaded text-field length limits

Version 2.392.0

Added

• SetDocumentAttachmentMetadata renames document-level embedded attachments and updates their descriptions before serialization

Version 2.391.0

Added

• ExtractLoadedPagesTextToStream streams selected loaded-page text as UTF-8 with custom separators and optional BOM output
• THPDFViewerModel adds form-field hit testing and deterministic keyboard navigation across page widgets
• THPDFSignatureInfo.CertificateTimeValidity reports certificate-bound and signed-time validity classifications

Fixed

• Loaded form fields without widget /P back-references can now be mapped through page annotation arrays

Version 2.390.0

Added

• THPDFWatermarkTemplate.MakeCurve and THPDFPage.AddCurveWatermark add cubic Bezier curves to loaded composites and new-document authoring

Fixed

• Loaded document metadata setters now mark the Info dictionary dirty so incremental saves persist title and author changes

Version 2.389.0

Added

• InsertLoadedBlankPage inserts a blank page with caller-defined dimensions at an exact loaded-document position
• ExtractLoadedPagesText aggregates text from a one-based page range with a caller-defined separator
• GetLoadedFormFieldNameValuePairs and SetLoadedFormFieldNameValuePairs provide batch name=value form exchange through TStrings
• CMapResourcePath supports explicit standard CMap deployment paths for services, plug-ins, and custom application layouts

Changed

• The VCL viewer now draws search-hit rectangles and refreshes when the active hit changes on the current page, while linked outline controls follow viewer document changes
• Page rendering now resolves inherited media boxes, rotation, and resources and correctly maps non-zero page origins at every right-angle rotation

Fixed

• Form-name conflicts are rejected before page insertion or append begins when merge renaming is disabled, leaving the destination page count unchanged
• Deleting loaded pages now detaches their AcroForm widget fields and removes empty field-tree branches instead of leaving references to deleted pages
• Cursor-style search helpers and viewer-model misses no longer clear managed text-match records with raw memory operations
• Automatic CMap discovery now passes the actual collection root to the text decoder

Version 2.388.0

Added

• New DeletePages removes one-based page ranges from loaded PDFs, de-duplicates overlapping selections, reports progress, and rebuilds a valid page tree for saving
• Page insertion and append merging now accept THPDFMergeOptions to copy recursive outlines, register imported AcroForm fields, and deterministically rename conflicting field names
• New AddLoadedRadioButton creates a true parent radio field with child widgets, shared export values, and complete on/off appearance states
• New SearchLoadedNext provides stateless page-local next-match search, while GetLoadedOutlineEntries returns complete recursive outline snapshots with parent and level data
• New Windows certificate-store signing overloads select a current-user or local-machine certificate by SHA-1 thumbprint and sign through either CNG or legacy CSP private keys
• New THPDFLoadedDocumentFacade exposes typed outline, form, annotation, font, and image collections with mutation and extraction helpers
• New THPDFViewer, THPDFSearchPanel, THPDFOutlineViewer, viewer model, and viewer action classes add reusable VCL page display, navigation, zoom, search, and bookmark controls
• New advanced printing, signature validation, page-thumbnail, loaded-image export, and typed loaded-document inspection demos cover the end-to-end workflows

Changed

• Loaded-document printing now builds deterministic collated or uncollated physical page sequences, supports custom paper width and length, and reports printer paper codes, names, and sizes
• System certificate enumeration now includes SHA-1 thumbprints, private-key availability, validity dates, and key-usage metadata

Fixed

• Loaded text-search result growth no longer copies managed string records with raw memory moves, preventing invalid-pointer failures on Win64
• Deleting loaded pages no longer frees shared page resources or leaves stale page-tree counts that reappear after save and reload

Version 2.387.0

Added

• New PrefetchLoadedPages renders a page range into the rendered-page cache on a background worker thread, so a viewer turning pages gets instant warm-cache hits instead of waiting for each render
• CancelLoadedPagePrefetch stops the worker and IsLoadedPagePrefetchActive reports its state; loading another document or destroying the component cancels an active prefetch automatically
• Cached rendering and the prefetch worker are serialised internally, so RenderLoadedPageToBitmapCached stays safe to call while a prefetch is running

Version 2.386.0

Added

• New FlattenLoadedAnnotations draws each annotation's normal appearance permanently into the page content at its rectangle and removes the annotation, so markup and form visuals survive in viewers that hide or cannot edit annotations
• The pass follows appearance-state dictionaries through /AS, honours the appearance bounding box and matrix when fitting the rectangle, and can be limited to one annotation subtype or a page range

Version 2.385.0

Added

• New RenderLoadedPageRegionToBitmap rasterises only a chosen user-space window of a page at the requested DPI, so very large pages can be rendered tile by tile in bounded memory at high resolutions instead of as one oversized bitmap
• Tiles align exactly: the bitmap covers precisely the requested region, so adjacent tiles reassemble into the full page without seams

Version 2.384.0

Added

• New GenerateLoadedPageThumbnails renders the selected pages of a loaded document and embeds them as JPEG page thumbnails, the previews shown in viewer page panels; the longest edge size and JPEG quality are configurable, and existing thumbnails are replaced in place
• GetLoadedPageThumbnailSize reads back an embedded thumbnail's pixel dimensions, and ClearLoadedPageThumbnails removes thumbnails from the selected pages

Version 2.383.0

Added

• EnumLoadedPageElements now reports vector path elements alongside text runs and images: each painted path yields an element with its user-space bounding box, the painting operator (stroke, fill, or both), the fill and stroke colours in force, and the segment count
• The path walker follows q/Q nesting and cm transformations, so shapes drawn inside scaled or translated blocks report their true page coordinates

Version 2.382.0

Added

• THPDFPrintOptions gains Duplex (simplex, long-edge, short-edge), PaperBin, and PrintQuality fields that are pushed into the printer device mode before the job starts; an explicit Orientation value is now applied as well
• New HPDFGetInstalledPrinters lists the system printers, and HPDFGetPrinterCapabilities reports a printer's duplex and colour support, maximum copy count, paper bins (with the codes accepted by PaperBin), and supported resolutions

Version 2.381.0

Added

• New CopyLoadedOutlinesFromDocument merges the complete bookmark tree of another loaded document into the current one, preserving titles, nesting, sibling order, and destination view parameters while remapping every destination page by a caller-supplied offset — the companion to page-append merges so combined documents keep both bookmark sets

Fixed

• GetLoadedBookmarkPageIndex now finds bookmarks beyond the first top-level entry and inside nested levels; the previous lookup only matched later bookmarks by coincidence

Version 2.380.0

Added

• New ImposeLoadedPagesNUp lays any page range onto grid sheets (any columns-by-rows arrangement, configurable sheet size and gutter) in reading order, scaling each page into its cell with optional aspect-ratio preservation
• New ImposeLoadedPagesBooklet produces saddle-stitch booklet sheets: pages are padded to a multiple of four and paired in booklet order so double-sided printing and folding yields a correctly ordered booklet
• Both imposition calls wrap the source pages as Form XObjects and append the finished sheets after the existing pages, returning the sheet count

Fixed

• Loaded-page rendering now follows an indirect reference on the resources /XObject sub-dictionary; pages whose resources arrived as separate objects skipped their images and forms silently

Version 2.379.0

Added

• SaveLoadedPagesAsImages gains two TIFF formats: ifTIFF writes one single-page TIFF file per page, and ifTIFFMulti aggregates the whole page range into one multi-page TIFF, unifying TIFF output with the existing BMP, JPEG, PNG, EMF, and WMF choices
• Both TIFF paths honour the requested rendering DPI in the image resolution tags and use lossless Deflate compression

Version 2.378.0

Added

• Loaded-page rendering now draws text rendering modes 1 (stroke) and 2 (fill then stroke) with real glyph outlines for both embedded fonts and system-font fallbacks, using the current stroke colour and line width; the clipping variants 4 to 7 paint like their base modes

Fixed

• Twelve single-operand content operators (Tc, Tw, Tz, TL, Ts, Tr, w, J, j, M, ri, i) read their operand from the wrong token position and always applied zero; character and word spacing, horizontal scaling, leading, text rise, render mode, line width, caps, joins, and miter limit now take effect when rendering loaded pages

Version 2.377.0

Added

• Loaded-page rendering now honours optional-content (layer) visibility: content inside BDC /OC marked sections and XObjects carrying an /OC entry is hidden when its layer is off, following the document's default configuration (/BaseState, /ON, /OFF)
• Optional-content membership dictionaries evaluate their /P policy (AnyOn, AllOn, AnyOff, AllOff) over the member groups
• New layer APIs on loaded documents: GetLoadedOptionalContentGroupCount, GetLoadedOptionalContentGroupName, GetLoadedOptionalContentGroupVisible, and SetLoadedOptionalContentGroupVisible to inspect and override layer states for rendering; overrides invalidate the rendered-page cache automatically

Version 2.376.1

Fixed

• Loaded-page bitmap rendering now paints image XObjects: the Do, gs, and sh resource lookups previously missed their slash-prefixed operand names and skipped the object silently
• The cm operator and Form XObject /Matrix values now concatenate in the correct order, so translate-plus-scale placement sequences (the standard image positioning idiom) land content at its intended page position

Version 2.376.0

Added

• New RegisterExponentialFunction, RegisterStitchingFunction, and RegisterPostScriptFunction APIs create standalone Type 2, Type 3, and Type 4 function objects for use wherever a function reference is accepted (shadings, halftone spot and transfer functions, tint transforms)
• RegisterPostScriptFunction validates the calculator program at registration time by trial evaluation, so malformed programs are rejected immediately instead of degrading silently in viewers
• New RegisterSeparationFunc creates a Separation colour space with a caller-supplied tint-transform function object

Fixed

• Rendering Type 2 (exponential) tint transforms with one- or three-component outputs no longer paints black; previously only four-component (CMYK) outputs decoded correctly
• Rendering Type 3 (stitching) tint transforms now supports any number of sub-functions, applies the /Encode remapping, and accepts single-entry /Bounds arrays

Version 2.375.0

Added

• Page rendering now evaluates Type 4 (PostScript calculator) tint-transform functions, so Separation and DeviceN colours and gradient shadings driven by calculator programs render their real colours instead of a grey placeholder
• The calculator evaluator covers the complete ISO 32000-1 7.10.5 operator set: arithmetic, comparison, boolean and bitwise, stack manipulation, and if/ifelse conditionals

Fixed

• Named colour-space selection (cs/CS operators) in loaded-page rendering now resolves resource names correctly; previously the lookup missed and the content fell back to the default colour space
• Loaded-page rendering now follows indirect references to array-valued colour spaces such as /Separation and /DeviceN definitions stored as standalone objects

Version 2.374.0

Fixed

• XFDF annotation import/export now preserves caret annotation default appearance data through the <defaultappearance> child and the PDF annotation DA entry

Version 2.373.0

Fixed

• XFDF annotation import/export now preserves caret annotation fringe geometry through the fringe attribute and the PDF annotation RD entry

Version 2.372.0

Fixed

• XFDF annotation import/export now preserves rubber stamp annotation rotation through the rotation attribute and the PDF annotation Rotate entry

Version 2.371.0

Fixed

• XFDF annotation import/export now preserves text annotation reply relationships through inreplyto, replyType, and the PDF annotation IRT and RT entries

Version 2.370.0

Added

• XFA numeric, date-time, and password fields with disabled horizontal scrolling now flatten to AcroForm text widgets with the PDF do-not-scroll flag

Version 2.369.0

Added

• XFA text fields with disabled scroll policies now flatten to AcroForm text widgets with the PDF do-not-scroll flag

Version 2.368.0

Added

• XFA text fields with multiLine="1" now flatten to AcroForm text widgets with the PDF multiline flag

Version 2.367.0

Added

• XFA subform access restrictions now inherit into child widgets so generated AcroForm fields stay read-only when an ancestor is readOnly, protected, or nonInteractive

Version 2.366.0

Added

• XFA choice-list flattening now maps commitOn="select" to the AcroForm commit-on-selection-change flag for generated choice fields

Version 2.365.0

Added

• XFA choice-list flattening now maps open="always" lists to single-select AcroForm list boxes instead of drop-down combo boxes

Version 2.364.0

Added

• XFA choice-list flattening now maps textEntry="1" combo lists to editable AcroForm combo boxes while preserving typed values outside the option list

Version 2.363.0

Added

• XFA choice-list flattening now prefers <items save="1"> values when a field carries separate display and saved-value option lists

Version 2.362.0

Fixed

• XFDF annotation import/export now preserves FreeText justification and tail attributes through the PDF annotation Q and IT entries
• JBIG2 document defaults now match the documented scan-friendly settings for lossy level, isolated black-pixel cleanup and black-dot size

Version 2.361.0

Fixed

• XFDF annotation import/export now preserves standard line leader and caption attributes, including leaderLength, leaderExtended, caption, leader-offset, caption-style, caption offset values and the import-side leaderExtend spelling used by compatible XFDF files

Version 2.360.0

Added

• XFA flattening now suppresses output for fields and static draws concealed by presence="hidden", presence="invisible", or presence="inactive", including descendants of concealed containers

Version 2.359.0

Added

• XFA flattening now maps field-level access="readOnly", access="protected", and access="nonInteractive" restrictions to the generated AcroForm read-only flag

Version 2.358.0

Added

• XFA flattening now preserves <choiceList open="multiSelect"> semantics by setting the PDF multi-select flag on the generated AcroForm list box

Version 2.357.0

Added

• XFA flattening now maps <ui><passwordEdit> fields to AcroForm text fields with the PDF password flag, preserving bound values while allowing readers to treat the field as password-style input

Version 2.356.0

Added

• XFA flattening now honours explicit <bind match="none"> field bindings, so fields marked as unbound remain blank instead of taking same-name values from the XFA form or datasets packets

Version 2.355.0

Added

• XFA flattening now honours simple explicit <bind match="dataRef" ref="..."> field bindings such as $record.customer.legalName, so ApplyXFAAsAcroForm and FlattenLoadedXFA preserve values stored under a different data node name before automatic same-name matching

Version 2.354.0

Fixed

• XFDF annotation import/export now preserves link annotation BorderStyleAlt children through the PDF annotation Border array, including corner radii, width and dash pattern values

Version 2.353.0

Fixed

• XFDF annotation import/export now preserves standard interior-color attributes for line, square, circle, polygon, polyline and redaction annotations through the PDF annotation IC color array

Version 2.352.0

Fixed

• XFDF annotation import/export now preserves standard annotation border style and cloudy border effect attributes, including width, dashes, style and intensity

Version 2.351.0

Fixed

• XFDF annotation import/export now preserves annotation rich text through <contents-richtext> and imports popup child geometry and open state into annotation Popup dictionaries

Version 2.350.0

Fixed

• XFDF annotation import/export now preserves additional standard annotation attributes: text open and review state values, line endpoint styles, link and redaction coords, FreeText default style, default appearance and rotation, and square or circle fringe geometry

Version 2.349.0

Fixed

• XFDF annotation import/export now follows ISO 19444-1 structures for lines, polygons, polylines and ink annotations: line exports include full start / end coordinate pairs, polygon and polyline data uses <vertices> child elements, ink data uses <inklist><gesture>, semicolon-separated coordinate pairs import correctly, and unsupported annotation subtypes no longer inflate the exported count

Version 2.348.0

Added

• LoadedPageCount property, DuplicateLoadedPage, AddLoadedBlankPage, SetLoadedPageRotationValue and GetLoadedPageBoxRect round out the loaded-document page-operation API — duplicate pages, insert blank separators, set rotation and read any of the five page boxes in one call
• GetLoadedEncryptionMethod returns the cipher name (RC4-40 / RC4-128 / AES-128 / AES-256), GetLoadedFileStructureInfo aggregates linearization / object-stream / xref-type in one call, LoadedSourceFileSize is a property, and SetLoadedPDFVersion updates the version
• StampLoadedPageImage and StampLoadedPageImageFromFile embed a JPEG Image XObject (logo / signature image / QR code) onto a loaded page at a given rectangle, InsertLoadedText draws a single-line text run, and GetLoadedPageContentLength returns the decoded byte count
• THPDFPrintOptions gains IgnoreHardMargin (offset printer hard margins so content is not clipped) and AutoRotate (landscape pages print landscape automatically)
• SaveLoadedPagesAsImages gains BMPPixelFormat / BMPMonochrome (mono / 8-bit export) and JPEGScale (1 / 2 / 4 / 8 sub-sampled JPEG decode for fast thumbnails)
• CompressLoadedDocument zlib-compresses every uncompressed stream in the loaded object graph and writes /Filter /FlateDecode, shrinking output size

Fixed

• StampLoadedPageText and StampLoadedPageImage now transparently decompress FlateDecode content streams before appending operators — previously stamping onto a compressed /Contents silently corrupted the zlib payload and the appended text/image disappeared

Version 2.347.0

Added

• AddLoadedOutline creates a new bookmark on a loaded PDF at any nesting level (ParentIndex = -1 for top-level), with a /Dest [page /XYZ x y zoom] target — the single highest-requested loaded-document feature, closing the gap that HotPDF could read/modify/delete bookmarks but never create them
• SetLoadedOutlineDestination and SetLoadedOutlineURI rewrite an existing bookmark’s target page or switch it to a URI action
• ResolveLoadedNamedDestination turns a named destination string into a zero-based page index, and AddLoadedNamedDestination registers a new anchor on the loaded document’s /Names /Dests tree
• GetLoadedBookmarkPageIndex is a convenience lookup: pass a bookmark title, get back the page it points to

Version 2.346.0

Fixed

• Image scaling quality now honours /Interpolate: HALFTONE stretch mode is used by default (smooth downscale) and COLORONCOLOR when the image explicitly sets /Interpolate false, so small raster images keep their hard edges where the author intended instead of always blurring

Version 2.345.0

Fixed

• TJ array kerning adjustments are no longer discarded: the numeric elements between string runs advance the text matrix by -value × FontSize / 1000, so tightly-spaced titles and logo lettering from Word / Illustrator place glyphs at the intended offsets
• Tw (word spacing) now also fires on the CID ideographic space (U+3000, code $3000), so justified Japanese / Chinese text gets its word spacing instead of only ASCII code 32
• Font weight / italic detection now consults /FontDescriptor /Flags (bit 18 ForceBold) and /ItalicAngle in addition to the /BaseFont name, so subset-prefixed fonts whose name carries no -Bold suffix still render at the right weight

Version 2.344.0

Added

• GetLoadedTrapped reads the /Trapped key from the Info dict (True/False/Unknown), where it was previously write-only — PDF/X preflight workflows can now round-trip the trap state
• GetLoadedDocumentMetadataXML returns the raw XMP metadata stream bytes so PDF/A documents whose Info dict is absent can still expose dc:title / dc:creator / xmp:CreateDate
• GetLoadedCollectionInfo reads the /Collection Name of a PDF Portfolio (EmbeddedFiles name tree still carries the file list)
• GetLoadedOutlineChild descends one level into the bookmark tree, returning the /First child of a top-level outline entry, so nested chapter / sub-chapter bookmarks are no longer invisible
• RotateLoadedPages rotates every page in a range by a given angle (accumulating onto existing /Rotate), the batch counterpart to per-page rotation
• SetLoadedPageBoxForRange sets a page box (Media/Crop/Bleed/Trim/Art) for every page in a range in one call
• GetLoadedViewerPreferences now also reads HideWindowUI and CenterWindow, matching the six keys the writer emits (previously only four came back)

Version 2.343.0

Fixed

• The W n / W* n clip idiom now applies the clip: the n operator builds the pending path and calls SelectClipPath instead of discarding both the path and the pending clip, so rect / container clips written as re ... W n no longer leak their contents past the boundary
• SetMiterLimit is now pushed to GDI before building the stroke pen, so sharp joins honour the PDF miter limit (default 4) instead of GDI’s default 10 — eliminating the long spikes on acute-angle joins
• Type 3 glyphs declared with d0 (colour-permitting) now explicitly clear the colour-suppress flag, so a preceding d1 glyph no longer bleeds its colour suppression into a d0 glyph

Added

• ri (rendering intent) and i (flatness) operators are now consumed and stored on the graphics state (RenderingIntent / Flatness fields), where they were previously silently skipped

Version 2.342.0

Added

• Text rendering mode operator Tr is now consumed; mode 3 (invisible) skips painting the text run entirely, so the OCR / form-background hidden text layer no longer paints as overlapping garbage glyphs — the most common Tr case in real-world PDFs. Modes 1 / 2 (stroke) currently fall back to fill pending per-glyph outline support
• Marked-content operators BMC / BDC / EMC and the DP / MP property variants now maintain a depth counter on the renderer, the prerequisite for a later round’s OCG / OCMD visibility evaluation; BX / EX compatibility operators maintain their own counter so the renderer knows it is inside a compatibility block

Version 2.341.0

Fixed

• Bezier shorthand operators v and y are now handled by the page renderer, where they were previously silently skipped — rounded rectangles, circles and the curves produced by Illustrator / PowerPoint / InDesign render correctly instead of being truncated or dropped
• DrawTextRun now honours Tz (horizontal text scaling), Tw (word spacing, applied to the space glyph) and Ts (text rise) so justified Word exports place glyphs at the right width, headings that are horizontally stretched/squeezed keep their length, and super/subscript text lifts off the baseline — previously those three text-state values were stored but never consumed

Version 2.340.0

Added

• SearchLoadedPageTextWholeWord filters the substring matches produced by SearchLoadedPageText down to those that sit on word boundaries (the glyph before the match start and after the match end must not be a word character), providing whole-word matching without padding the search string with a trailing space
• GetLoadedSearchHitRect collapses a match’s glyph range into a single bounding rectangle (user-space Left/Top/Right/Bottom, padded by a fraction of the font size), so a viewer can draw one highlight box per hit instead of walking the glyph array

Version 2.339.0

Added

• ExtractLoadedPageTextColumns reconstructs multi-column text: glyphs are clustered into baselines by a Y tolerance, each row is sorted by X, and a row splits into separate columns (tab-separated) wherever the gap between consecutive glyphs exceeds a configurable multiple of the median glyph advance — the column-aware counterpart to ExtractLoadedPageTextLayout that previously declared column detection out of scope
• THPDFPageElement now carries a BaselineRole (brNormal / brSuperscript / brSubscript) populated by EnumLoadedPageElements: a run whose font size is markedly smaller than the page median and whose Y origin sits above or below the dominant baseline is flagged

Version 2.338.0

Fixed

• Image XObjects are now placed by transforming the unit square through the current CTM, instead of being stretched across the whole page bitmap — the previous StretchDraw(Rect(0,0,W,H)) misplaced every image on the page; images now land in the rectangle the content stream actually specifies

Added

• /ImageMask stencil images are detected on the render side and painted with the current fill colour (PDF 8.9.6.1), where the renderer previously drew them as a plain greyscale bitmap

Version 2.337.0

Added

• Render-side stroke style: the page renderer now honours the J (LineCap: butt/round/square), j (LineJoin: miter/round/bevel), M (MiterLimit) and d (LineDash array + phase) operators by building a geometric pen via ExtCreatePen instead of the previous fixed CreatePen(PS_SOLID, ...), so rounded joins, dashed borders and square end caps render correctly
• Render-side gs (ExtGState) operator: the named ExtGState dictionary in /Resources/ExtGState is now consumed for LW / LC / LJ / ML / ca / CA and applied to the graphics state, where the renderer previously dropped the operator entirely
• Graphics state extended with LineCap / LineJoin / MiterLimit / LineDash / DashPhase / FillOpacity / StrokeOpacity fields, all with PDF-default initial values

Fixed

• Clip (W / W*) now sets the GDI polygon fill mode (ALTERNATE vs WINDING) before SelectClipPath, so even-odd and nonzero-winding clip intersections are no longer identical

Version 2.336.0

Security

• The render-side /Indexed colour-space parser now clamps HiVal to the spec-mandated [0..255] range, closing a buffer-overread vector where a malformed HiVal let nComps × indexHigh overflow a 32-bit byte count and read past the lookup table

Added

• AttachLoadedAnnotationMeasure writes a /Measure dictionary (PDF 1.7 §12.5.6.13) onto a Line or Polygon annotation, carrying the /NumberFormat array (unit label, decimal/fraction/round style, precision), the /Scale ratio and the /CYX isotropy factor — so a viewer can compute the real-world distance or area the shape spans

Version 2.335.0

Added

• Render-side sh (shading) operator: axial (Type 2) and radial (Type 3) shadings are now painted instead of silently dropped, so PDFs whose backgrounds rely on Word/Excel-style gradients render their colour blend. The shading is discretised into bands along its axis and each band is filled with the colour the shading’s function evaluates to at that point

Version 2.334.0

Added

• Render-side function-object evaluator HPDFEvalTintTransform now resolves Type 2 Exponential (C0 + xN·(C1-C0) with Domain/Range clamping), Type 0 Sampled (8/16/32-bit, Encode mapping, nearest-sample) and Type 3 Stitching (Bounds-selected sub-function recursion) — so Separation / DeviceN tint transforms and shading functions evaluate to real alternate-space colours instead of the v2.333.0 grey fallback. Type 4 PostScript calculators degrade gracefully
• The page renderer now wires the colour-space unit’s indirect-ref resolver and decoded-stream reader to its document access at construction time, so tint-transform stream objects can be decoded through the same path as image XObjects

Version 2.333.0

Added

• Render-side CIE-based colour spaces: CalGray, CalRGB (gamma + 3×3 matrix) and Lab (Lab→XYZ→sRGB with the 6/29 breakpoint cube) now resolve to real colours instead of degrading to black; the Bradford-adapted sRGB matrix is cached per white point so per-pixel work stays a single 3×3 multiply
• Render-side ICCBased colour space resolves through its /Alternate (or an N-based DeviceRGB/Gray/CMYK guess when Alternate is absent), so pages carrying an ICC profile display correctly without an lcms dependency
• Render-side Separation and DeviceN spot-colour spaces: the alternate space, tint-transform function reference and component count are parsed; the tint transform is wired through a pluggable evaluator so spot-colour pages are distinguishable from “colour not set” (full tint evaluation lands with the function engine)
• Generic colour operators cs / CS / sc / SC / scn / SCN now handled by the page renderer, the prerequisite for every non-Device colour space to take effect on a loaded page
• Unified colour resolution through HPDFResolveColor with the extended THPDFColorSpaceFamily and THPDFCIEParams records, replacing the per-space ad-hoc logic

Version 2.332.0

Added

• RenderSignatureFieldAppearance paints a preset signature-field appearance template — border, light fill and up to four labelled text lines (“Digitally signed by <Name>”, “Reason: ”, “Location: ”, “Date: ”) — selected via a THPDFSignatureDisplayOptions set as a convenience wrapper around AttachSignatureFieldAppearance
• EnumerateSystemCertificates walks a Windows certificate store (typical MY / ROOT / CA) via dynamically loaded Crypt32.dll and returns subject / issuer display names plus the raw DER for each certificate, the building block for a “pick a certificate / USB Key” signer UI

Security

• Signature hash algorithm is SHA-256 by default with PAdES Seed Value DigestMethods already accepting SHA-256 / SHA-384 / SHA-512, so no SHA-1 signing path exists

Version 2.331.0

Added

• RenderLoadedPageToDC draws one page straight into a caller-supplied device context (printer canvas, off-screen surface, custom TCanvas), removing the bitmap round-trip for print and high-DPI workflows
• RenderLoadedPageToClipboard places a page on the clipboard either as a 24-bit bitmap or as an enhanced metafile (vector text), so paste-into-Word / paste-into-image-editor just works
• PrintLoadedDocument with a THPDFPrintOptions record drives the VCL TPrinter through a page range, DPI, copies, collation, FitPage scaling and per-page render — the document library now ships its own print path instead of leaving every caller to wire one up

Version 2.330.0

Added

• GetLoadedPageLabel reads back the /PageLabels /Nums range that covers a given page index, returning the style code, prefix and start number — the read counterpart to SetLoadedPageLabel, so labels a caller did not create itself can now be inspected and round-tripped
• StitchLoadedPageSideBySideEx performs the side-by-side 2-up stitch with a configurable horizontal gutter and source-page scale factor, where the legacy StitchLoadedPageSideBySide was fixed to half width with no gap

Version 2.329.0

Added

• AddLoadedRubberStampAnnotation with a THPDFRubberStampIcon enum covering all 14 standard stamp names (Approved, AsIs, Confidential, Departmental, Draft, Experimental, Expired, Final, ForComment, ForPublicRelease, NotApproved, NotForPublicRelease, Sold, TopSecret) so viewers render the familiar bitmaps without a custom appearance stream
• SetLoadedAnnotationCloudyBorder turns a Square / Circle / Polygon annotation into a cloudy (cloud-burst) border by writing /BE /S /C /I plus the /IC interior colour array
• SetLoadedLineAnnotationCaps sets the /LE line-end (arrowhead) styles for Line / Polyline annotations from the new THPDFLineEndStyle enum (None / OpenArrow / ClosedArrow / Butt / ROpenArrow / RClosedArrow / Slash / Diamond)

Version 2.328.0

Added

• EnsureLoadedFieldAppearanceStream generates a /AP /N Form XObject for an existing AcroForm field from its /DA + /V + /Rect, so viewers that ignore /NeedAppearances still render the field value without a round-trip through Acrobat
• ApplyLoadedFieldValidation attaches a Format / Keystroke / Validate script trio to a field using the Acrobat AF* helpers, covering Number, Percentage, Date, Time, Currency, ZipCode, SSN, Phone and ArbitraryMask input kinds — the caller no longer has to hand-write AFNumber_Format / AFDate_FormatEx / AFRange_Validate JavaScript
• ApplyLoadedFieldCalculation attaches an AFSimple_Calculate script so a field aggregates the values of a named source field set via Sum / Average / Product / Minimum / Maximum

Version 2.327.0

Added

• Visual search-and-replace SearchAndRedactReplaceLoaded: for every hit of the needle it masks the match rectangle with a chosen colour (or skips the mask with HPDF_NO_MASK) and stamps the replacement text on top, complementing the byte-level ReplaceLoadedPageText when the original font lacks a reverse char-code table or the replacement needs a different font
• Region text extraction GetLoadedPageTextInRegion concatenates every glyph whose origin falls inside a user-space rectangle, with newlines between baselines — the building block for “copy text from this box” UI flows
• Cursor-style SearchLoadedFirst returns the first match as a single THPDFTextMatch, so callers can walk hits without managing a whole match array

Version 2.326.0

Added

• Document-wide MeasurementUnit property (muPoints / muPixels / muInches / muMM / muCentimeters / muTwips) so every high-level authoring coordinate is converted to PDF points through ToPDFUnit / FromPDFUnit
• Placeholder substitution in watermark text: <%PageNo%>, <%TotPage%>, <%FileName%>, <%ShortDate%>, <%LongDate%>, <%ShortTime%>, <%LongTime%> are resolved per page when stamping, so “Page X of Y” and dated stamps are one call
• AddTextWatermarkEx page method that combines placeholder substitution, unit-aware coordinates and a unified THPDFWatermarkBase record (angle, opacity, position presets)
• Shape-watermark page helpers AddRectangleWatermark, AddEllipseWatermark, AddLineWatermark and AddPolygonWatermark, each wrapping the path primitives in a q/Q graphics-state pair with registered fill/stroke alpha
• Unified THPDFWatermarkTemplate record with MakeText / MakeRectangle / MakeEllipse / MakeLine / MakePolygon factories plus a THPDFWatermarkTemplateArray composite type
• Loaded-document watermarking: StampLoadedPageText and StampLoadedPagesText append a transparent, rotated text run to existing pages, honouring the MeasurementUnit and the same placeholder set; StampLoadedPagesComposite applies a whole template array (text + shapes) to a page range
• Z-order control on loaded-document stamps: Underlay = True prepends the watermark stream before the existing /Contents via the array form, so the watermark renders behind the page content
• EnumLoadedPageElements returns text runs (glyphs aggregated by baseline + font) and image XObject placements as THPDFPageElement records with bounding boxes
• SaveLoadedPagesAsImages multi-format export: BMP / JPEG / PNG raster plus EMF / WMF vector, one file per page, with configurable DPI, file-name prefix and JPEG quality
• GetLoadedPageMetafile vector render of one page to a TMetafile via the new THPDFPageRenderer.ExecuteToDC path, keeping text and vector paths scalable for print, clipboard and merge workflows

Version 2.325.3

Fixed

• Aggregating batch preflight reports no longer overflows the total-bytes count when a single input file is over 2 GB

Version 2.325.2

Fixed

• Saving a document over 2 GB with object streams enabled (UseObjectStreams) no longer writes a corrupted cross-reference stream; the object offsets and cross-reference stream position, previously narrowed to a 32-bit integer, are now carried as 64-bit values through the whole write

Version 2.325.1

Fixed

• Four recovery-only scans used when a damaged PDF cannot be parsed normally — object-stream decompression, object-stream discovery, and two reference-repair passes — no longer read a file over 2 GB into a truncated buffer; each now skips that fallback on such a file instead of scanning corrupted data

Version 2.325.0

Added

• EMF/WMF import now renders EMR_GRADIENTFILL rectangle gradients (GRADIENT_FILL_RECT_H / GRADIENT_FILL_RECT_V) as PDF Type 2 axial shading patterns, mapping each TRIVERTEX colour pair to an RegisterAxialGradient call and filling the rectangle with the resulting pattern; previously this record was a documented no-op, now Word/Excel/PowerPoint gradient rectangles in EMFs render with the correct left-to-right or top-to-bottom colour blend

Version 2.324.0

Added

• EMF/WMF import now parses EMR_GDICOMMENT comments, distinguishing Adobe PDF passthrough markers (0x416F4650 = "AoFP", MS-EMF §2.3.3) from other comment types. When the Adobe marker is present the comment payload is scanned for the pdfmark keyword and surfaced via debug logging so users can identify which EMF producers emit PostScript pdfmark fragments; other comment types remain no-ops. Both HotPDF and llPDFLib previously carried only an empty stub for this record

Version 2.323.0

Added

• EMF/WMF import now explicitly recognises EMR_GRADIENTFILL as a documented no-op (PDF Type 2/3 shading patterns could express gradient fills but viewer rendering is inconsistent and GDI's per-pixel Gouraud interpolation does not map cleanly); previously this record was silently dropped without a case-table entry

Version 2.322.0

Changed

• PFX-based signing now routes inputs of 64 MB or larger through a streaming chunked signer (HPDFCMSSignPDFStreamChunked) that scans for the /ByteRange + /Contents placeholders in 256 KB rolling reads, digests the two byte-range windows via HPDFCMSSHA256StreamRanges, then copies the input stream to the output stream while patching the placeholder bytes in flight, so peak memory stays bounded by the 256 KB buffer instead of the entire file size; smaller inputs keep the fast in-memory Pos() + Move() path unchanged

Version 2.321.0

Added

• Optional-content group usage dictionaries: SetOptionalContentGroupUsage attaches a /Usage entry to a registered OCG (PDF 1.7 §8.11.4.4 Table 100) so viewers auto-show/hide layers by context. Categories View / Print / Export write <Category>State = ON/OFF; Zoom writes a real-pair Min; Language / Creator write string values
• Outline subtree copy: THPDFDocOutlineObject.CopySubtree deep-clones the entire child subtree of a node under a new parent, propagating Title / Color / Bold / Italic / Opened while minting fresh object numbers and new destinations
• Outline topology helpers IsDescendant (cycle-safe predicate used by MoveTo) and MoveTo (re-parent a node, detaching from its old sibling chain and re-attaching as the last child of the new parent, with full /Prev / /Next / /First / /Last / /Count maintenance on every affected ancestor)

Version 2.320.0

Added

• Nested optional-content /Order tree: BeginOptionalContentOrderGroup / AddLayerToOptionalContentOrder / EndOptionalContentOrderGroup build a labelled, arbitrarily nested presentation tree (PDF 1.7 §8.11.4.3 /Order) so the layers panel can show hierarchical groupings like "Background [Lines Fills Images]" instead of the historical flat list. When none of the new helpers are called the previous flat /Order mirroring /OCGs is preserved byte-for-byte

Version 2.319.1

Fixed

• Loading a PDF whose embedded JBIG2 image uses the standard Huffman coding option (rather than the more common MQ arithmetic coding) no longer fails outright: the loader now retries with the alternate decoding engine before giving up, so such images load successfully regardless of which decoding engine is preferred

Version 2.319.0

Changed

• EMF/WMF import now applies a centralised InPath gate at the ExecuteRecord entry: while a path bracket is open (BeginPath seen, EndPath/AbortPath not yet reached) only path-construction records (line/curve/polygon/move/close/end/abort plus the coordinate-system and DC-state records) reach their handlers; text and bitmap records that previously leaked into the open path are now dropped centrally, mirroring llPDFLib's entry-point guard and eliminating a class of malformed-PDF bugs from stray records inside a path bracket

Version 2.318.0

Added

• Optional-content radio-button groups: new RegisterOptionalContentRadioGroup declares mutually exclusive layer sets whose members turn each other off (PDF 1.7 §8.11.4.3 /RBGroups); typical use is single-choice layer panels like "Draft / Review / Final"

Version 2.317.0

Added

• THPDFDocOutlineObject.InsertBefore / InsertAfter splice a new sibling into the existing outline doubly-linked list at an arbitrary position, complementing the existing AddChild (append) and AddChildFirst (prepend) helpers so outline trees can be built in any order without detaching and re-attaching nodes
• EMF/WMF import now explicitly recognises the ICM/palette family (EMR_SETBRUSHORGEX, EMR_SELECTPALETTE, EMR_SETCOLORADJUSTMENT, EMR_SETICMMODE, EMR_CREATECOLORSPACE, EMR_SETCOLORSPACE, EMR_DELETECOLORSPACE, EMR_GDICOMMENT) and the no-PDF-mapping family (EMR_FRAMERGN, EMR_INVERTRGN, EMR_PAINTRGN, EMR_FLATTENPATH, EMR_WIDENPATH, EMR_SETMETARGN, EMR_OFFSETCLIPRGN, EMR_PLGBLT, EMR_POLYTEXTOUTA, EMR_POLYTEXTOUTW), forwarding to the GDI reference DC where applicable without emitting to the PDF content stream; previously these records were silently dropped, now they are documented and kept consistent with the GDI side

Version 2.316.0

Added

• New JBIG2Benchmark demo generates four PDFs from the same three-page synthetic scan, one per THPDFJBIG2Options configuration (per-image lossless, per-image LossyLevel=5, cross-page accumulated globals, rectangle symbol extraction), printing each output size so the trade-offs between the v2.310.0 scan-friendly defaults, the v2.314.0 cross-page accumulator, and the extraction modes can be compared directly

Version 2.315.0

Changed

• The cross-page accumulated JBIG2 dictionary now auto-batches: once the running glyph-width total crosses 131071 pixels the current dictionary is frozen, emitted as one /JBIG2Globals stream, and the accumulator is reset, so the next batch starts a fresh globals stream. Mirrors llPDFLib's TotalWidth-based spilling and keeps individual globals streams at a size readers handle efficiently on very large scan runs

Version 2.314.0

Added

• Cross-page accumulated JBIG2 symbol dictionary: opt in with THPDFJBIG2Options.AccumulateGlobalsAcrossPages := True (alongside the existing UseSymbolDictionary + UseGlobalSegments + native fallback switches) and consecutive 1-bit icJBIG2 images share one growing in-memory symbol dictionary and one /JBIG2Globals indirect stream, instead of each image emitting its own dictionary. New THPDFJBIG2SymbolDictionary holds the persistent glyph set with the same lossy / lossless matching the per-image encoder uses; new smoke_jbig2_accum_decode verifies two pages of different glyph layouts share a single globals object reference and decode back to the source pixels bit-for-bit

Version 2.313.0

Added

• JBIG2 global-segment streams produced by the native symbol-dictionary encoder are now content-addressed at the document level via THPDFJBIG2GlobalsPool, so images that yield byte-identical globals share one /JBIG2Globals indirect stream instead of each emitting their own; new smoke_jbig2_globals_multi smoke covers three pages of identical glyphs collapsing onto a single shared globals stream

Version 2.312.0

Added

• EMF/WMF import now covers EMR_SCALEVIEWPORTEXTEX, EMR_SCALEWINDOWEXTEX, EMR_EXCLUDECLIPRECT, EMR_CREATEDIBPATTERNBRUSHPT, EMR_SETMITERLIMIT, EMR_SETTEXTJUSTIFICATION, and EMR_SETROP2, closing the seven-record gap with llPDFLib so EMF streams emitted by older GDI toolchains no longer silently drop those records; SETMITERLIMIT and SETROP2 take effect immediately, while the others store state for a later render-side hookup without perturbing current coordinate or clip output

Version 2.311.0

Added

• HPDFCMSSHA256StreamRanges now digests the two PDF /ByteRange windows straight from a TStream in 256 KB chunks, so multi-GB signed PDFs can be hashed without first copying the whole file into an AnsiString; closes the gap with llPDFLib's stream-based CalcHash, which the existing in-memory HPDFCMSSHA256ByteRanges could not match for very large inputs

Version 2.310.0

Changed

• THPDFJBIG2Options now defaults to scan-friendly settings (LossyLevel = 5, RemoveIsolatedBlackPixels = True, BlackDotSize = 3) so 1-bit scanned images compress much smaller out of the box; set LossyLevel = 0 or Lossless = True to restore strict lossless matching

Performance

• xref table growth is now geometric (small documents +N, larger documents +25%) instead of reallocating the dynamic array on every indirect object, removing the O(n²) cost that dominated loading and building large PDFs with many objects

Version 2.309.4

Added

• Added THPDFDocOutlineObject.AddChildFirst so generated outline nodes can prepend a child item before existing siblings while preserving the saved outline order

Version 2.309.3

Added

• Added pmUseOC to THPDFPageMode so generated documents can request the optional-content layers panel with catalog /PageMode /UseOC

Version 2.309.2

Added

• Added title-string overloads for THPDFPage.AddTextAnnotation so generated text annotations can write the PDF /T title or author entry while preserving the existing icon, color, and open-state arguments

Version 2.309.1

Fixed

• Clearing THotPDF.OutputStream by assigning nil now restores normal FileName output instead of leaving the document in stream-output mode

Version 2.309.0

Fixed

• EMF/WMF import now honors EMR_EXTSELECTCLIPRGN region modes for copy, intersect, and exclude clipping while keeping EMR_SETWORLDTRANSFORM, EMR_MODIFYWORLDTRANSFORM, and EMR_SETPIXELV covered by non-GUI regression tests

Version 2.308.0

Added

• FastReport add-on design-time registration now ships as frxHotPDFDesign, placing TfrxHotPDFExport on the FastReport VCL palette while keeping the existing runtime unit and Register entry point available for compatibility

Version 2.307.0

Added

• SignPDFWithPFX now parses legacy PKCS#12 PBE-SHA1-3DES encrypted PFX files in addition to PBES2 AES-256-CBC profiles

Version 2.306.0

Changed

• Repeated calls that add the same encoded image now reuse the existing PDF image XObject while preserving distinct output for different JPEG quality settings and mask relationships

Version 2.305.0

Added

• TfrxHotPDFExport.PageRange now lets FastReport exports opt in to one-based page filtering such as 1,3-5 while reusing HotPDF's shared page-range parser

Version 2.304.0

Fixed

• XFA-to-AcroForm table flattening now lets all-growable single auto columns inherit the table content width, so fields without their own w still receive a measurable width and preserve row spacing

Version 2.303.0

Fixed

• XFA-to-AcroForm table flattening now lets growable text cells inherit fixed columnWidths values when they omit their own w, so row heights are measured and following rows stay separated

Version 2.302.0

Fixed

• XFA-to-AcroForm flattening now measures growable text fields inside nested layout="tb" and wrapped layout="lr-tb" flows, and table rows now keep growable text-cell height when positioning following fields

Version 2.301.0

Fixed

• XFA-to-AcroForm flattening now keeps text fields in layout="tb" and layout="lr-tb" flow containers when they omit an explicit h height, measuring their wrapped content height instead of skipping them as unsupported growable layout

Version 2.300.0

Fixed

• THotPDF.ExtractObjectFromStream now returns the parsed dictionary for materialized object-stream members and no longer fabricates raw-data diagnostic keys when callers inspect loaded PDF 1.5+ object streams

Version 2.299.0

Added

• THotPDF.DecompressAllObjectStreams is now public and forces loaded PDFs that used object streams to save with compact objects materialized as normal indirect objects instead of copying the source object-stream layout

Version 2.298.0

Fixed

• AcroForm field creation now rejects duplicate root field names for both new documents and loaded-document editing while preserving the valid shared-parent workflow for radio button groups

Version 2.297.0

Added

• TDBGridHotPDFExportOptions and the TDBGridHotPDFExport component now expose PDFACompliance and PDFXCompliance so DBGrid table exports can opt in to the same HotPDF standards-conformance gates used by direct document generation

Version 2.296.0

Added

• TQRHotPDFExportFilter and TdxHotPDFExportOptions now expose PDFACompliance and PDFXCompliance so QuickReport and DevExpress exports can opt in to the same HotPDF standards-conformance gates used by direct document generation

Version 2.295.0

Added

• TfrxHotPDFExport and TppHotPDFDevice now expose PDFACompliance and PDFXCompliance so report exports can opt in to the same HotPDF standards-conformance gates used by direct document generation

Version 2.294.0

Added

• Form XObject and tiling pattern canvas builders now let callers compose reusable resources through typed drawing helpers before registering them for page reuse
• THPDFExtGStateOptions now lets one ExtGState combine transparency, blend mode, line width, line cap, line join, and miter limit settings

Version 2.293.0

Added

• Native JBIG2 encoding now supports symbol-dictionary compression with optional shared global dictionaries, rectangle and image-only extraction modes, lossy pixel-difference guards, and PDF/A fallback to CCITT where JBIG2 is not permitted
• EMF/WMF rendering now handles TransparentBlt and MaskBlt bitmap records through PDF image mask and transparency paths
• FastReport and ReportBuilder native export modes now cover more object-level output, including styled memo/rich text, barcode, picture, vector shape, line, clipping, frame, dash, and URL annotation paths
• The HugeFileBenchmark demos now report working-set and peak-working-set metrics, support an opt-in memory limit, and keep generated work files separate from report output
• The Delphi PDFOptimize demo now documents producer-side compression choices for content streams, object streams, JPEG quality, CCITT, and JBIG2 output

Fixed

• Demo coverage checks now include English-baseline demo READMEs, map consolidated C++Builder samples to their actual files, and keep GUI demos disabled by default in routine test runs

Version 2.292.32

Added

• EMF/WMF hatch brushes now map to PDF tiling patterns so imported CAD drawings and reports can preserve hatch texture instead of flattening those fills to solid color

Fixed

• Loaded-document dictionary edits now mark objects dirty so SaveLoadedDocument rewrites changed PDFs instead of copying the original source after outline and object-tree edits
• Loaded outline removal now relinks sibling bookmarks, and non-rotated underline and strikeout text decorations now emit filled rectangle operators

Version 2.292.31

Added

• THPDFEmfOptions.ShowNullBrush now lets EMF/WMF rendering expose null-brush fills for diagnostic and CAD-style import workflows while preserving unfilled null brushes by default

Version 2.292.30

Added

• THPDFEmfOptions.CanvasOver now lets page Canvas replay place existing PDF content above the parsed Canvas metafile while the default keeps the current Canvas-on-top order

Version 2.292.29

Added

• THPDFEmfOptions.Redraw now lets EMF/WMF callers keep the default temporary redraw path or opt out and parse the original metafile directly

Version 2.292.28

Added

• THPDFEmfOptions.UseFrame now lets EMF/WMF rendering clip imported output to the EMF header frame for metafiles that rely on declared frame bounds

Version 2.292.27

Added

• THPDFEmfOptions.ShowNullPen now lets EMF/WMF rendering expose null-pen outlines for diagnostic and CAD-style import workflows while preserving invisible null pens by default

Version 2.292.26

Added

• THotPDF.SetFormFieldTooltip now lets applications assign AcroForm /TU field hints by field name for widgets created through the existing Add... field methods

Version 2.292.25

Fixed

• TfrxHotPDFExport native-object mode now preserves TfrxPictureView clipping and frame rendering when picture views are written directly as HotPDF image XObjects

Version 2.292.24

Added

• TfrxHotPDFExport native-object mode now maps supported horizontal one-dimensional FastReport barcode views directly to HotPDF barcode operators, while keeping human-readable text, checksum generation, supplemental text, rotation, colored bars, and unsupported symbologies on the existing fallback path

Version 2.292.23

Added

• TppHotPDFDevice native draw-command mode now maps supported one-dimensional ReportBuilder barcode draw commands directly to HotPDF barcode operators, while preserving the enhanced-metafile fallback for commands that need human-readable text, add-on codes, check-digit calculation, colored bars, rotation, or unsupported postal symbologies

Version 2.292.22

Fixed

• Automatic PDF viewer launch can now be suppressed in non-interactive runs with HOTPDF_SUPPRESS_AUTO_LAUNCH=1, and the bundled test and smoke runners enable that guard by default so non-GUI regression runs do not open viewer windows

Version 2.292.21

Added

• THPDFPage.ShowMetafileEx now has a per-call THPDFEmfOptions overload, letting callers override EMF/WMF rendering settings for one metafile draw while preserving document-level defaults