feat(pipeline): add PDF fallback parser and layout reconstruction (#63)#90
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PAMulligan merged 1 commit intoMay 29, 2026
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Reconstruct an approximate version of the IDML parser's intermediate representation from a PDF exported from InDesign, for when IDML is unavailable or as a verification source. - parse-pdf.js orchestrator: parsePdf/parsePdfBuffer -> validated Document IR (same shape as the IDML parser; Spread-per-page, Frame/TextFrame/ImageFrame/ Story, warnings) - pdf/ modules: lazy pdfjs-dist loader, per-page extraction (text runs, font metrics, fill colors, image XObjects, vector flag), positional clustering with gutter-aware column detection, font-size -> heading/body/caption style synthesis, RGB/gray/CMYK -> hex with nearest-swatch matching against an IDML palette, and a zero-dependency PNG encoder for the asset cache - fidelity warnings for every approximation (10 codes), surfaced in CLI output and documented in docs/pipeline/indesign-pdf-fidelity.md - flavian-parse-pdf CLI (--dpi, --asset-dir, --quiet) - programmatic PDF fixtures (build-pdf.js); 57 tests incl. text-heavy, image-heavy, multi-column, brochure, asset extraction, and an IDML<->PDF round-trip within documented tolerances pdfjs-dist pinned to 4.x with a guarded Promise.withResolvers polyfill so the package keeps its Node >=20 support (5.x requires Node >=22). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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