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pdfcraft/crates
Grzegorz MartensandClaude Opus 5.5 ae677644e0 M2.6: Extract and Split prune nothing past the form depth limit
Pruning reads forms 8 deep. Past that a form's /XObject dictionary was kept whole, but the forms
it draws weren't read, nor what they draw through resources of their own. When those resources
are shared with content that was read, they were cut to the names that content draws, and the
images only the deep forms draw were dropped from the part. This was so on `main` for a form read
whole, and in this change's reading of a damaged form too.

A walk the depth limit stops now leaves the file unpruned, as an overlarge Type 3 resource graph
already does: `nothing_is_pruned_past_the_depth_limit` (a form 9 deep, whole or damaged partway,
drawing a form that draws through resources the second page shares). That also settles a form
first reached past the limit and drawn again higher up, whose second reading `forms_seen` skips.
Down to the limit pruning goes on, under a page whole or damaged partway and with the form 8 deep
whole or damaged: `pruning_goes_on_down_to_the_depth_limit`.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AmsdeUCdTaD72jkDw2pJKY
2026-11-07 18:49:17 +01:00
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2026-11-03 09:20:23 -05:00
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