PDF Watermark Remover

• Risk level: Low
• Analyzed: Apr 18, 2026, 10:11 AM
• Findings: 0
• Version: 1.0.0

Overview

The skill's code and instructions align with its stated purpose (removing image-based watermarks from PDFs); it requests no credentials, performs only local PDF manipulation, and has no install/download steps.

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.