Use this reference to find the main component classes, page drawing API, security options, image and compression support, and working Pascal examples directly in the web help
API, example, conformance, preflight, and workflow topics are available as standalone web pages
Eight hard-to-match differentiators, the supporting evidence, and the audiences HotPDF is built for — on one page: native source with no DLL, full OpenType shaping, in-process PFX signing, PAdES, three-axis compliance, the multi-gigabyte Direct File API and more
See the core selling pointsCreate documents, configure output, manage metadata, protect files, and finalize generated PDFs
THotPDF classReview loaded-document resolution, direct-file handling, xref-stream parsing, conformance output, and shaping helper workflows
Advanced workflow methodsEdit, merge, inspect, sign, search, print, and display existing PDFs through the loaded-document and VCL viewer APIs
Loaded document toolkitExplore the HotPDF overview for forms, annotations, secure signatures, conformance, layers, graphics, images, text, large files, and stream output capabilities
HotPDF OverviewDraw text, paths, curves, images, metafiles, annotations, and barcode output on the active page
THPDFPage classReview THPDFBarcode, barcode option enums, simple bar records, and Simple* encoder functions
HPDFBarcode unit referenceReview supported bitmap, TIFF, JPEG2000, JBIG2, EMF, and WMF workflows
Supported image formatsUnderstand FlateDecode, LZW, JBIG2, JPEG, JPEG2000, and bundled native compression paths
Compression overviewGenerate structure reports, apply profiles, write JSON or HTML, aggregate batch runs, and review diagnostics
Preflight cookbookControl initial display, print preferences, page layout, page mode, and related PDF viewer settings
ViewerPreferences referenceOpen runnable examples for document creation, drawing, encryption, font embedding, paragraphs, and outlines
Example topicsReview the HTML version history for user-visible HotPDF features, fixes, compatibility changes, and documentation updates
Open release notes