Protect PDF
Add password protection to your PDF files. Encrypt PDF documents to restrict access. Free online tool.
Drop your PDF here
Select a PDF to process
PDF filesMax 100MB per file
Features
Set open password
Permission controls
128-bit encryption
Restrict printing
Restrict copying
Restrict editing
How to Use Protect PDF
- 1
Upload your file
Drag and drop or click to browse and select your file.
- 2
Adjust settings
Configure any options as needed for your specific use case.
- 3
Process & Download
Click the process button and your result will download automatically.
Why Use Our Protect PDF Tool?
✓
100% free with no hidden costs or limitations
✓
Secure processing — files stay safe
✓
No registration, no email, no account required
✓
Works on all devices — desktop, tablet, and mobile
✓
Lightning fast processing
✓
No watermarks added to your files — ever
Protect PDF FAQ
Common questions about protect pdf
Trusted Worldwide
Trusted by Millions of Users
Based on 268,429+ user reviews across the platform.