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pdfcraft/crates/content
Marco Arnulfo 240ea53b8b fix(content): skip an inline image with an unreadable key to its EI (#1318) (#1404)
When a key in an inline image dictionary was not a name (`BI /W 4 H 4
ID ... EI`), the parser ended the image at the end of the stream and
counted nothing as skipped, so every operator after the image was lost:
text_lines found no text on a page whose text follows such an image.

An image whose parameters can't be read is now skipped up to the EI
that ends it, the skipped bytes are counted, and parsing resumes after
it. Without an EI the image still runs to the end of the stream, as
before.

Adds tests::an_unreadable_inline_image_is_skipped_to_its_end, which
fails before this change.
2026-10-12 07:53:44 -04:00
..
2026-10-07 16:03:57 -04:00

pdfcraft-content

Layer L2: content streams (ISO 32000-2 §7.8.2, §8, §9).

let parsed = parse(&stream.decoded()?);       // operators with operands and source spans
for op in &parsed.ops { if op.is("Tj") { /* … */ } }
let bytes = serialize_ops(&parsed.ops);       // write back (inline images kept whole)
let m = Matrix::from_operands(&op.operands);  // cm / Tm arithmetic, invert, bbox

The parser is tolerant (unreadable bytes are skipped and counted, never fatal) and never panics. redact and (later) edit build their interpreters on it; the graphics-state tracker and the Patch API of architecture §6 grow here.