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PDF Watermark Remover

v1.0.0

Remove image-based watermarks from PDF files (e.g. "Made with Gamma", Canva, Notion watermarks). This skill should be used when the user wants to remove wate...

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byEARFQUAKE@yangmo20050509-netizen
MIT-0
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LicenseMIT-0 · Free to use, modify, and redistribute. No attribution required.
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Benign
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Benign
high confidence
✓
Purpose & Capability
Name/description match the included script and SKILL.md: the skill needs Python and pymupdf and the code implements content-stream/XObject edits to remove image watermarks. No unrelated credentials, binaries, or external services are requested.
✓
Instruction Scope
SKILL.md instructs the agent to analyze and run the included script against local PDF files and to tune detection thresholds. It does not direct reading unrelated files, exfiltrating data, or contacting external endpoints.
✓
Install Mechanism
No install spec or remote download is used. The only runtime dependency is pymupdf which the SKILL.md documents (pip install). The skill is instruction+script-only and nothing is fetched from arbitrary URLs.
✓
Credentials
The skill requests no environment variables, credentials, or config paths. The few required runtime items (Python 3.8+ and pymupdf) are proportional to the task.
✓
Persistence & Privilege
always is false and the skill does not request persistent system modifications or modify other skills' settings. It operates on user-supplied input/output files only.
Assessment
This skill appears coherent and local-only, but take these precautions before using: 1) Always run it on copies/backups of your PDFs — modifying raw content streams and XObjects can corrupt files or remove non-watermark images if thresholds are too broad. 2) Test and tune the --x-threshold/width/height options on sample pages before batch-processing many documents. 3) It only handles image-based watermarks (not text-based watermarks); use redaction for text watermarks. 4) Ensure you have permission to remove watermarks (legal/ethical considerations). 5) Install pymupdf in a controlled environment (virtualenv) and review outputs before sharing them.

Like a lobster shell, security has layers — review code before you run it.

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License

MIT-0
Free to use, modify, and redistribute. No attribution required.
Termshttps://spdx.org/licenses/MIT-0.html

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