Protect PDF
Add a password so only people who know it can open the PDF. Uses AES-256 encryption.
Runs in your browser · Files are never uploadedFormats: PDFLimits: 100 MB per file · up to 50 files · 300 MB total
How to use
- 1
Add one PDF file.
- 2
Enter the password twice and, if needed, restrict printing, copying, or editing.
- 3
Click “Protect” and download the result.
FAQ
Is my password sent anywhere?
No. Your password and file are only used inside your browser and are never stored.
What encryption is used?
Standard PDF AES-256 encryption. Most apps, including Acrobat Reader and browser PDF viewers, can open it.