dart_pdf_engine 1.3.0

A pure-Dart Flutter library for creating, reading, and manipulating PDF documents programmatically. Supports text, images, shapes, tables, fonts, bookmarks, and more.

1.3.0

• Enhanced PDF Renderer — Comprehensive content stream operator support for the PDF viewer:
  • Text operators: TJ, Tm, T*, TD, TL, Tc, Tw, ', "
  • Fill/stroke operators: f*, B*, b, b*, s
  • Color operators: cs/CS, sc/SC/scn/SCN, k/K (CMYK)
  • Path operators: v, y, W* (even-odd clipping)
  • Line style: j, J, M (join, cap, miter limit)
  • Composite operator tokenization (f*, B*, b*, W*, T*)
  • Hex string support in TJ arrays
• Parser fix — Resolve indirect Resources and Font dictionary references.
• Web compatibility — Replaced dart:io ZLib with package:archive for cross-platform support (web/WASM).

1.2.0

• PDF Viewer Widget — New PdfViewer, PdfPageView, and PdfPageRenderer widgets for rendering PDFs in Flutter.
• PdfViewerController for programmatic page navigation and zoom control.
• Removed embedded raw data and test files from the package.

1.1.0

• PDF Parsing — PdfDocument.fromBase64() and PdfDocument.fromBytes() now fully parse existing PDFs.
• New PdfTokenizer for low-level PDF lexing.
• New PdfParser for high-level PDF structure parsing (xref, trailer, pages, bookmarks).
• Parse pages with dimensions and content streams.
• Extract document metadata (title, author, subject, creator).
• Extract bookmarks/outlines.
• Support for both traditional xref tables and cross-reference streams.
• FlateDecode stream decompression for content streams.
• PdfPage.fromParsed() constructor for loading parsed page data.
• PdfGraphics.fromParsed() constructor for pre-populated content streams.
• PdfDocument.isLoaded and PdfDocument.rawBytes properties.
• PdfDocument.saveAsNew() to re-serialize loaded documents.

1.0.0

• Initial release.
• PDF document creation from scratch.
• Text drawing with standard PDF fonts (Helvetica, Times, Courier, etc.).
• TrueType font embedding with subsetting.
• JPEG and PNG image embedding.
• Shapes: lines, rectangles, ellipses, paths.
• Colors, brushes, and pens.
• Multi-page documents with standard page sizes.
• Tables with cell styling, borders, and padding.
• Ordered and unordered lists.
• Document bookmarks/outlines.
• URI annotations (hyperlinks).
• Basic PDF reading and text extraction.