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gigapdf-lib v0.68.0

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@github-actions github-actions released this 23 Jun 08:05
· 121 commits to main since this release
v0.68.0
ee0c6c8

Format-reach + import/render fidelity release: the unified model now exports
Markdown / CSV / EPUB end to end, Office/ODF import preserves far more
structure, the HTML→PDF renderer gains the remaining common CSS, and several
image-codec and rendering bugs are fixed.

Added

  • Markdown / CSV / EPUB model export. The unified editable model can now be
    raised to Markdown (modelToMd), CSV (RFC 4180, modelToCsv) and
    EPUB 3 (modelToEpub), alongside the existing
    modelTo{Docx,Xlsx,Pptx,Odt,Ods,Odp,Pdf,Html,Rtf} targets (ABI
    gp_model_to_{md,csv,epub}).
  • Complete Markdown modelling. CodeBlock, Blockquote and
    HorizontalRule are first-class in the model — full Markdown round-trip
    (headings, runs, links, images, nested lists, GFM tables, code blocks,
    block-quotes, horizontal rules, footnotes, front-matter) rendered and exported
    consistently across formats.
  • Office / ODF import fidelity. DOCX/XLSX/PPTX and ODF (.odt/.ods/
    .odp)     import now preserves images, hyperlinks, strikethrough,
    highlighting, spreadsheet formulas, grouped shapes, charts, SmartArt text and
    master/layout (theme) inheritance    .
  • HTML / CSS → PDF — remaining common CSS. Radial and conic
    gradients, font-weight 100–900, box-shadow (blur), elliptical
    border-radius    , dashed/dotted borders, linear-gradient and
    position: sticky.
  • OpenType text shaping. GPOS mark positioning, GSUB contextual, script
    selection and Arabic joining (complex scripts only; Latin unchanged).
  • Image codecs. SVG <text> rendering and GIF multi-frame decoding.
  • Run highlight. Character-level background is painted and emitted across
    HTML, PDF and Office output.
  • setTextRunStyle. Run-level style bake exposed in the SDK.
  • Mermaid flowchart renderer in the HTML engine (graph TD/LR, node shapes,
    typed edges + arrowheads, Sugiyama layout → PDF vectors).

Fixed

  • AVIF multi-tile decode — corrupt images > 9.4 MP. Multi-tile AVIFs were
    decoded as a single tile, garbling pixels. The AV1 spec forces multi-tile
    above ~9.4 MP, so essentially every modern phone/camera AVIF was silently
    corrupted. Each tile is now decoded independently; single-tile and existing
    fixtures are byte-for-byte unchanged (validated bit-exact vs dav1d).
  • WebP lossless (VP8L) — lossless transforms + meta-Huffman now decode real
    cwebp/libwebp lossless images correctly.

Changed

  • Non-Device colorspaces — Pattern fills and Separation/ICCBased colours
    in content streams are unified through the raster colour resolver (consistent
    with the rasterizer) instead of a device-default fallback.
  • Docs honesty — README corrected to near-zero-dependency (hand-written
    PDF/render/conversion core; RustCrypto for crypto/signatures; Boa for
    JS — the earlier from-scratch JS engine is gone), 1198 tests (was 284), and
    .wasm ~5.6 MB (was ~540 KB, before Boa was bundled).
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