PDF Password Protector
Add password protection to your PDF files — secure your documents in your browser.
Protect your PDF
Upload a PDF and add password protection to secure it.
Privacy: Your PDF and password never leave your device. All encryption is performed locally.
Note: This tool adds metadata-level password protection. For full encryption with printing/copying restrictions, consider using Adobe Acrobat or similar software.
Drop PDF here or click to browse
Select a PDF file to protect
Free PDF Password Protector
Protect PDF with password using our free online tool. Add password protection to your sensitive PDF documents to prevent unauthorized access.
Features
- Add password protection to any PDF
- Password strength indicator
- 100% client-side processing
- Your password never leaves your device
- Free with no watermarks
Security Tips
- Use a strong, unique password
- Include uppercase, lowercase, numbers, and symbols
- Avoid common words and personal information
- Store your password securely