3 people 7965b497ff M2.6: skip annotation appearances whose box collapses to a line or point (#271) ...

ISO 32000-2 §12.5.5 maps an appearance onto its annotation by transforming
/BBox with /Matrix and scaling the resulting box onto /Rect. When /BBox has
zero width or height, or /Matrix has a zero row or column, that box is a
line or a point, and the vendored interpreter divided the /Rect size by
zero. The infinite or NaN matrix then reached the device with every path,
clip and glyph the appearance drew (4 of 4 drawing calls in the test).

hayro's rasteriser happens to drop such geometry, so pages looked right,
but nothing guaranteed it; AGENTS.md §4 asks for division by zero and NaN
to be guarded where they arise. Clipped to a collapsed box the appearance
shows nothing (MuPDF and Poppler draw nothing for these fixtures either),
so the appearance is now skipped, as is one whose mapping overflows. The
mapping of valid appearances is unchanged.

Test: raster::tests::degenerate_annotation_appearances_are_skipped. A
recording device sees non-finite geometry on main for a zero-width,
zero-height and point /BBox and for a /Matrix with a zero row or column;
none after. Each page renders blank; a valid appearance still fills its
/Rect and nothing outside it. Vendored patch (12) in vendor/README.md.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>

2026-10-08 09:00:21 -04:00

..

src

M2.6: skip annotation appearances whose box collapses to a line or point (#271)

2026-10-08 09:00:21 -04:00

Cargo.toml

Rename PrintCraft to PdfCraft (#174)

2026-10-07 16:03:57 -04:00