ericwang915 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