THotPDF Advanced Workflow Methods

This page collects advanced public THotPDF methods that support loaded-document repair, file-backed rewriting, xref-stream parsing, conformance output, and shaping workflows

Prefer the task-focused pages such as page operation methods, loaded form field methods, utility methods, and ShapingFeatures for common application code

Loaded Document Resolution

Method	Usage
`DoPageOperationProgress`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`ResolveLoadedObject`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`ResolveLoadedDictionary`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`ResolveLoadedArray`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`EnsureLoadedRootIndex`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`MaterializeLazyStreams`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`FindLoadedFormFieldByIndex`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`FindLoadedFormFieldByName`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`ConfigurePDFVersion`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`RecoverReloadFEKFromBytes`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`LoadedEncryptVersion`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`IsObjStmMemberObject`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows
`SyncMaxObjNumFromLoadedObjects`	Supports loaded-document resolution, form-field lookup, encryption metadata, or object-number bookkeeping in advanced workflows

Direct File State and Rewrite

Method	Usage
`ClearDirectFileState`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`GetDirectFileIndex`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DAFindReplacementIndex`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DAReadObjectSource`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DAStoreObjectSource`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DAAppendObjectSourceInternal`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DATryBuildCompressedFileState`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DADirectLoadObjectFromBody`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DARecoverAES256FileKey`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DADirectPrepareObjectForAES256Encrypt`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DADirectDecryptObjectAES256`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DAWriteDirectAES256Rewrite`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DADirectEncryptFileAES256`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DADirectDecryptFileAES256`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling
`DAWriteFullRewrite`	Supports file-backed direct rewriting, AES-256 encryption or decryption, and object-source state handling

XRef Stream and Object Parsing

Method	Usage
`LoadXRefStreamDocument`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`LoadXRefStreamDocumentFromFile`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`LoadXRefStreamDocumentEncFromFile`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeObjCount`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeObjNum`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeCompactCount`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeType2Mismatches`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeObjHasKey`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeObjNameVal`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeCompactObjNum`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeType2EncryptedSkipped`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeCountReplacementChars`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeObjStringVal`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`XRefProbeDecryptObjStmSkips`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`TryParseModernPDF`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`CreateBasicPageContent`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`CreatePDF16PageReference`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`CreateBasicResources`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`CreatePDF16Resources`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseSimplePageObject`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseRealPageContent`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ProcessObjectStreamsForDecompression`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ScanAndLoadReferencedObjects`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ForceLoadMissingReferencedObjects`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`FindAllObjectStreams`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ExtractStreamParameters`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ProcessFlateDecode`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`AnalyzePageObject`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ExtendPageArr`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseSimpleDictionary`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseSimpleArray`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseSimpleStream`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`FindAndProcessObjectStream`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ExtractObjectFromStream`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ExtractRawObjectFromStream`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`IsObjectInStream`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`GetObjectFromStream`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseModernPageObject`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`IntelligentDecompress`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`DecompressFlateDecode`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseObjectStream`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ReorderPageArrByPagesTree`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`GetCorrectPageOrderFromPagesTree`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`GetPageObjectId`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`GetPageArrIndexForObjectNumber`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ExtractNumericValue`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseDecompressedObjects`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`LoadCompressedXrefStream`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`LoadObjectStreamsDirectly`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ParseXrefStreamData`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files
`ProcessObjectStreamObjects`	Supports xref-stream and object-stream parsing, recovery, and diagnostics for modern PDF files

Conformance and Font Output

Method	Usage
`BuildAndApplyUnicodeFontSubset`	Supports Unicode font-subset sharing and PDF/A, PDF/X, or PDF/UA conformance checks during output
`EnsurePDFUATabsOnAnnotatedPages`	Supports Unicode font-subset sharing and PDF/A, PDF/X, or PDF/UA conformance checks during output
`EnsurePDFAOutputIntent`	Supports Unicode font-subset sharing and PDF/A, PDF/X, or PDF/UA conformance checks during output
`EnsurePDFAColorSpaceConsistency`	Supports Unicode font-subset sharing and PDF/A, PDF/X, or PDF/UA conformance checks during output
`EmitDocumentDefaultColorSpaces`	Supports Unicode font-subset sharing and PDF/A, PDF/X, or PDF/UA conformance checks during output
`EnsurePDFXOutputIntent`	Supports Unicode font-subset sharing and PDF/A, PDF/X, or PDF/UA conformance checks during output
`EnsurePDFXPageBoxes`	Supports Unicode font-subset sharing and PDF/A, PDF/X, or PDF/UA conformance checks during output

Advanced Shaping Helpers

Method	Usage
`ApplyArabicGSUBPositional`	Supports advanced GSUB shaping, glyph mapping, and synthetic-codepoint workflows before text emission
`ArabicGSUBShapeToGIDs`	Supports advanced GSUB shaping, glyph mapping, and synthetic-codepoint workflows before text emission
`ApplyArabicGSUBNativeShaping`	Supports advanced GSUB shaping, glyph mapping, and synthetic-codepoint workflows before text emission
`ApplyLatinLigatureFeature`	Supports advanced GSUB shaping, glyph mapping, and synthetic-codepoint workflows before text emission
`ApplyLatinSingleSubstitutionFeature`	Supports advanced GSUB shaping, glyph mapping, and synthetic-codepoint workflows before text emission
`ApplyLatinFractionFeature`	Supports advanced GSUB shaping, glyph mapping, and synthetic-codepoint workflows before text emission
`ApplyArabicGSUBRefinement`	Supports advanced GSUB shaping, glyph mapping, and synthetic-codepoint workflows before text emission

See also