Protect PDF
Add password protection to your PDF files. Encrypt with a password to prevent unauthorized access.
The PDF will require this password to open.
How to Add a Password to a PDF
Select a PDF file, enter a password, and click Protect PDF. The encrypted PDF will require the password to open. All encryption happens locally in your browser — your file never leaves your device.
Tips for Strong Passwords
- Use at least 8 characters
- Mix uppercase, lowercase, numbers, and symbols
- Avoid common words or personal information
- Store your password in a password manager