Password Protect PDF
Lock your PDF with a password.
Add AES-128 encryption to your PDF. Set a user password to restrict opening, an owner password for full control, and configure print and copy permissions.
Drop your PDF here, or browse
Free · No sign-in · Processed in browser
🔒 Processed entirely in your browser — your file never leaves your device.
Features
Proper PDF encryption in seconds
- ✓AES-128 encryption — industry standard
- ✓User password to restrict opening
- ✓Owner password for full permission control
- ✓Restrict printing, copying, and editing
- ✓Compatible with all major PDF readers
- ✓Your file never leaves the browser
How to use
Upload
Drop your PDF or click to select it from your device.
Set passwords
Enter a user password (to open) and optionally an owner password (for full control).
Permissions
Toggle printing, copying, and editing on or off for the user.
Download
Click Protect PDF and download your encrypted file.
Frequently asked questions
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