How to Use Password Protect PDF
- Upload your PDF file using the tool above
- Configure any options if needed
- Click the action button to process
- Download your result instantly
Why Use PDFMaster AI for Password Protect PDF?
- Lightning fast: Process files in seconds, not minutes
- Secure: Files encrypted in transit and at rest. Auto-deleted after 24h
- No installation: Works in any modern browser
- Free tier: Use unlimited times with sensible limits
- AI-powered: Advanced processing using state-of-the-art ML models
Frequently Asked Questions
What encryption is used?
AES-256 — the same encryption used by banks and governments.