A cover counted only when it hid 40% of the line's words or box, so a
black box over one number in a long line, and an unapplied redaction
mark over it, audited clean while the number was still extractable. A
cover that hides half of any one word now counts as well.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RUNQSPVXx3dDBabRZHAnjz
* fix(audit): an applied redaction at the end of a line is not a faux redaction
After Apply Redactions removes text at the end of a line, the line keeps a
TJ adjustment where the text was, and the box of the line still spans it.
The audit compared the redaction box with that box: at the end of a line
it covered more than 40% of it and the words left beside it were reported
as covered text, on a correctly redacted file. In the middle of a line the
gap was usually too small to cross the threshold.
Text lines now also give the boxes of the words they draw (`ink`: glyphs,
without spaces and TJ adjustments), and the audit measures how much of
those words a cover hides. A real cover over text that is still there is
found as before.
doc_audit_redactions also reports its rectangles in top-left-origin points
like comment_list and doc_info; they were in PDF user space.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(audit): leave the rectangles of doc_audit_redactions in user space here
Reporting doc_audit_redactions rectangles in top-left-origin points is a
separate subject from the false alarm this branch fixes, and on its own it
made the tool and `pdfcraft-cli audit` disagree on the same file: the CLI
still prints PDF user space. Take it out of this change; the tool and the
CLI can move together in their own change.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(edit): word boxes span whole words when glyphs run backwards
With a negative font size or a negative horizontal scale (Tz), each glyph
advances backwards along the text matrix, and the box of a word kept only
its first glyph: the end of the word was compared with a start that had
already moved past it. A word box is now the union of its glyphs whichever
way they go, and a TJ adjustment ends a word past 0.2 em of the scaled size,
whatever its sign.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(audit): a cover over a short value after a long label is still found
Measuring a cover on the words of a line alone missed faux redactions main
found: a long label followed by a short value hidden under the box is less
than 40% of the line's words. A cover now also counts, as before, when it
hides 40% of the line's box and at least half of one word still drawn; a
cover over the gap an applied redaction left, with no word under it, still
does not. The audit README states both rules.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(audit): retain partial-value cover detections
Co-Authored-By: OpenAI Codex <noreply@openai.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: OpenAI Codex <noreply@openai.com>
- Pin FindingKind stable IDs (covered-text, unapplied-mark) with a test
and document the no-rename contract on id()
- Golden tests pinning the full AuditFinding struct for both finding
classes (page, kind, exact rect, covered text)
- Depth-limit boundary tests: 32 nested form XObjects audit clean,
33 fail closed with TooDeep
- Fix stale crate docs: m/l axis-aligned rectangles count as covers (#1510)
- Document AuditFinding.rect normalization and covered_text joining
Tests + docs only, no behavior change.
Co-authored-by: Erick Barraza <ejbarraza1994@gmail.com>
* Rework faux-redaction audit per maintainer review
- Paint-order aware: a rectangle counts as a cover only when painted
strictly after the text (positions from the joined content stream).
- Colour-aware: WCAG contrast between text and cover must be below 3.0,
so page backgrounds, table shading and highlights are not flagged.
- Fail closed: audit_redactions returns Err on undecodable content
streams (decoded_strict) and malformed /Annots; the operator bound is
an error, not a silent truncation.
- Graphics state carries across a page's content streams (one joined
walk); form XObjects still isolate their state at Do.
- Audit-only: the sanitize-for-sharing half is dropped (upstream #162).
- Parity entry marked partial, not shipped.
* Audit: register its layer, add a README, fail closed past 32 nested forms, document what it doesn't check
---------
Co-authored-by: Erick Barraza <ejbarraza1994@gmail.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
