mtlcl410andClaude Opus 5.5 78d90416e6 M1: the renderer reads a cut-off last update's objects, as the document model does (core.repair-broken-files) ...

When a file's last incremental update stops after its cross-reference rows,
with no trailer or startxref, the last startxref in the file is the older
revision's. pdfcraft-cos finds no startxref in the last 4 KiB and rebuilds
from object headers (latest objects win); vendored hayro-syntax read the older
table, so the view showed the older revision (PDFBOX-3934: 12 pages, the model
13). ISO 32000-2 §7.5.6: a later section supersedes earlier ones; repair is
unspecified and PDFium, MuPDF, Poppler and qpdf take the latest objects.

hayro-syntax patch 43: when the last startxref is more than 4 KiB from the end
and N G obj headers follow it, Pdf::new_with_password rebuilds first; the older
table is read only when the rebuilt one has no page. Trailing data without
object headers and a startxref near the end read as before.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Pq7HyDBXygTf7jcqdsjcfn

2026-11-07 12:38:45 +08:00

..

acrobat-features.toml

M1: the renderer reads a cut-off last update's objects, as the document model does (core.repair-broken-files)

2026-11-07 12:38:45 +08:00