Protect PDF
Encrypt your PDF with a password to prevent unauthorized access. Fast, free, and completely private.
Drag & drop a PDF here
or click to browse
How to protect a PDF with a password
- Upload your PDF. Drop the file into the secure box.
- Set your password. Choose a strong password and confirm it.
- Protect. Click the button to encrypt your file and download the protected version.
Privacy First
Unlike many other online PDF tools, we never upload your files to a server. All encryption is done locally on your machine using modern web technologies. This means your sensitive documents and passwords stay entirely private.
Frequently asked questions
How strong is the encryption?
We use standard PDF encryption supported by all major PDF viewers like Adobe Acrobat and Chrome. It provides strong protection against unauthorized access.
Do you store my password?
No. Your password and your document never leave your computer. Everything happens locally in your browser.
What happens if I forget the password?
Because we don't store your password or your file, we cannot recover it for you. Make sure to keep your password in a safe place.
Can I protect any PDF?
Yes, as long as the PDF isn't already protected or restricted. If it is, you'll need to unlock it first before applying a new password.