Grzegorz MartensandClaude Opus 5.5 580abc51cf M8: a shared JBIG2 dictionary leaves with whatever used it, by any route ...

Redaction starts from the images a run replaces or removes and the forms
and soft masks under them, so a dictionary used by something that left
another way stays, with apply returning Ok: a stamp or widget appearance, a
Type 3 glyph, an /Alternates entry, a /Mask, or an image with /Filter by
reference or /DecodeParms through a reference to a reference. A
byte-identical copy stays too, which is what pdfseparate then pdfunite
leaves, and Remove Hidden Information never takes a dictionary out.

Compare what a full save would keep before and after the run instead, the
same walk write_full makes, now cos::reachable. What left names the
dictionaries, in any entry of its parameters; what stays that names one, or
a copy, is stored again without it; and the walk is taken once more, so a
dictionary still kept refuses the run, whatever keeps it. An image with
/Width, /Height or /Filter by reference is read, and is one bit in the copy,
as it was when drawn. /Alternates stays with what is stored again, and a
stream that isn't JBIG2 refuses rather than being stored.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AmsdeUCdTaD72jkDw2pJKY

2026-11-02 00:45:31 +01:00

..

acrobat-features.toml

M8: a shared JBIG2 dictionary leaves with whatever used it, by any route

2026-11-02 00:45:31 +01:00