Individual skill

evo-pdf-redaction-engine

Performs physical redaction of identified content in PDF documents using PyMuPDF's redaction API. Handles exact string redaction, regex-based redaction, hyperlink removal, metadata scrubbing, and secure document saving.

tasks-evolved/paper-anonymizer/environment/skills/evo-pdf-redaction-engine/SKILL.md

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Last checked: Nov 6, 2026

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Repository stars (not skill ratings): 98
Repository last updated: Sep 10, 2026
License: Apache-2.0

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agent-skills Repository topic
ai-agents Repository topic
llm-agents Repository topic
open-world Repository topic
self-evolving-agents Repository topic
writing Derived category

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# evo-pdf-redaction-engine

Performs physical PDF redaction using PyMuPDF (fitz). Applies redaction annotations, removes hyperlinks, purges metadata, and saves securely with garbage collection.

## Key Functions

- `redact_exact_strings(page, strings)` - Add redaction annotations for exact string matches
- `redact_regex_patterns(page, patterns)` - Add redaction annotations for regex matches
- `redact_page_region(page, rect)` - Redact an entire rectangular region
- `scrub_hyperlinks(page, link_patterns)` - Remove identifying hyperlinks and redact their text
- `scrub_metadata(doc)` - Purge standard and XMP metadata
- `anonymize_pdf(input_path, output_path, exact_strings, regex_patterns, link_patterns)` - Full pipeline
- `save_redacted_document(doc, output_path)` - Save with garbage=4 and deflate=True