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M8: redaction removes Info entries and XMP that repeat the redacted text (#2448)

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Applying redactions removed the glyphs under the marks but left the same
words in the document information dictionary and the XMP metadata.

The redaction interpreter now collects the removed glyphs' text in runs by
position. After verification, /Info entries containing a run (or one of its
longer words) are removed, and the catalog's and pages' XMP streams whose
text mentions one are removed whole; unreadable or oversized XMP fails
closed. Report::metadata counts what went.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
mtlcl410andClaude Opus 5.5 committed 2026-10-30 13:58:40 +08:00
1 parent f76dbb9e8c
commit fd653e46ac
7 files changed
+370 -7
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parity/acrobat-features.toml
+2 -2
View File
@@ -5768,8 +5768,8 @@ milestone = "M8"
status = "shipped"
commands = ["redact.apply"]
tools = ["redact_apply"]
evidence = ["crates/ui-egui/tests/it/redact.rs::marking_applying_and_clearing", "crates/engine/src/tests.rs::redaction_marks_apply_for_good_and_undo", "crates/automation/tests/it/automation.rs::redacting_through_tools", "crates/engine/src/tests.rs::the_renderer_check_refuses_text_still_shown_under_a_mark", "crates/redact/src/tests.rs::redacted_xobjects_do_not_survive_through_inherited_or_shared_resources"]
notes = "confirmation; one undo step; next save is a full rewrite. Refused, with nothing changed, when the page still shows text under a mark afterwards: text in some predefined CMaps and rotated Type 3 fonts is not removed yet, so those documents cannot be redacted. Also refused on a page with an inline image the renderer reads no image for, since the operators after it can't be known. Removed images and forms are unlinked from page-tree resources (own, inherited or shared) and from surviving forms' resources, not yet from annotation appearances or patterns"
evidence = ["crates/ui-egui/tests/it/redact.rs::marking_applying_and_clearing", "crates/engine/src/tests.rs::redaction_marks_apply_for_good_and_undo", "crates/automation/tests/it/automation.rs::redacting_through_tools", "crates/engine/src/tests.rs::the_renderer_check_refuses_text_still_shown_under_a_mark", "crates/redact/src/tests.rs::redacted_xobjects_do_not_survive_through_inherited_or_shared_resources", "crates/redact/src/tests.rs::redacted_text_does_not_survive_in_info_or_xmp"]
notes = "confirmation; one undo step; next save is a full rewrite. Document information entries that contain the removed text, and the document's and pages' XMP streams that do, are removed (#2448; matched without regard to case or spacing, by the whole run of removed text and by its words of three letters or digits or more); other objects' XMP, bookmarks and attachments are not searched. Refused, with nothing changed, when the page still shows text under a mark afterwards: text in some predefined CMaps and rotated Type 3 fonts is not removed yet, so those documents cannot be redacted. Also refused on a page with an inline image the renderer reads no image for, since the operators after it can't be known. Removed images and forms are unlinked from page-tree resources (own, inherited or shared) and from surviving forms' resources, not yet from annotation appearances or patterns"
[[feature]]
id = "protect.redact-glyph-removal"