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PythonClaw pdf_protect

Add or remove password protection on PDF files. Use when: user asks to encrypt, password-protect, unlock, or decrypt a PDF. Supports owner and user passwords with permission controls. NOT for: digital signatures, certificate-based encryption, or DRM.

install
source · Clone the upstream repo
git clone https://github.com/ericwang915/PythonClaw
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/ericwang915/PythonClaw "$T" && mkdir -p ~/.claude/skills && cp -r "$T/pythonclaw/templates/skills/data/pdf_protect" ~/.claude/skills/ericwang915-pythonclaw-pdf-protect && rm -rf "$T"
manifest: pythonclaw/templates/skills/data/pdf_protect/SKILL.md
source content

PDF Protect Skill

Add or remove password protection on PDF files using PyPDF2.

When to Use

✅ USE this skill when:

  • "Password protect this PDF"
  • "Encrypt report.pdf"
  • "Remove password from this PDF"
  • "Unlock this PDF — password is 1234"
  • User wants to add or remove PDF encryption

When NOT to Use

❌ DON'T use this skill when:

  • Digital signatures → use dedicated signing tools
  • Certificate-based encryption → use specialized PKI tools
  • DRM protection → not supported
  • Reading PDF content → use 
    pdf_reader

Usage/Commands

Encrypt a PDF

python {skill_path}/protect_pdf.py encrypt INPUT_PDF OUTPUT_PDF --password SECRET [options]

Options:

  • --password SECRET
    — user password (required to open the PDF)
  • --owner-password SECRET
    — owner password (for permissions; defaults to user password)
  • --no-print
    — disable printing
  • --no-copy
    — disable text copying
  • --format json
    — output result as JSON

Decrypt a PDF

python {skill_path}/protect_pdf.py decrypt INPUT_PDF OUTPUT_PDF --password SECRET [options]

Options:

  • --password SECRET
    — password to unlock the PDF
  • --format json
    — output result as JSON

Examples

  • "Protect with password" → 
    python {skill_path}/protect_pdf.py encrypt doc.pdf protected.pdf --password mypass
  • "Restrict printing" → 
    python {skill_path}/protect_pdf.py encrypt doc.pdf out.pdf --password pass --no-print
  • "Unlock PDF" → 
    python {skill_path}/protect_pdf.py decrypt locked.pdf unlocked.pdf --password pass123

Notes

  • Install dependency: 
    pip install PyPDF2
  • AES-128 encryption is used by default
  • If owner password is not set, it defaults to the user password