jedarden 928a64ebc9 [pdftract-ef6xz]: Complete fingerprint reproducibility test corpus ...

All 8 fixture pairs verified present:
- byte_identical/ (MATCH)
- acrobat_resave/ (MATCH)
- qpdf_resave/ (MATCH)
- pdftk_resave/ (MATCH)
- linearization_toggle/ (MATCH - KU-7)
- metadata_only/ (MATCH - ADR-008)
- content_edit_one_glyph/ (DIFFER)
- content_edit_one_paragraph/ (DIFFER)

Test file implements:
- INV-3: 100-invocation reproducibility test
- All 8 fixture pair tests
- INV-13: Format validation
- Cross-platform placeholder (CI integration pending)

All critical tests from Phase 1.7 (plan lines 1232-1237) implemented.

Closes pdftract-ef6xz
Verification: notes/pdftract-ef6xz.md

Refs:
- INV-3, INV-13, KU-7, ADR-008
- Plan Phase 1.7 lines 1214-1219, 1232-1237

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-06-02 13:32:26 -04:00

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