Protect PDF
Add a password so only people who know it can open the file. We encrypt with AES-256 and never store your password.
Drop your files here
or
Max 30 MB per file. Files are deleted after 2 hours.
How to protect a PDF
- 1
Select your PDF
Drop the PDF you want to protect, or click to browse.
- 2
Set a password
Enter a password of 6 characters or more — remember it, it can't be recovered — and press Protect PDF.
- 3
Download
Download your encrypted PDF. Your files are deleted automatically after 2 hours.
Frequently asked questions
Is password-protecting a PDF free here?
Yes — encrypting a PDF with a password is free, with no account required and no watermark added to the protected file.
Do you store my password or my PDF?
No. The password is used once to encrypt your file and is never stored, and both the original and the protected PDF are deleted automatically within 2 hours.
How strong is the password protection?
Your PDF is encrypted with AES-256, a standard trusted for sensitive data. Pick a password of at least 6 characters and keep it safe — it cannot be recovered if forgotten.