Protect PDF
Encrypt your PDF with a password. Anyone who wants to open it will need the password you set — encryption happens locally in your browser.
Drag & drop or click to choose
Choose a PDF to password-protect
Files are processed on your device and never uploaded.
How to protect pdf
- 1Upload the PDF you want to protect.
- 2Enter and confirm a password.
- 3Download your password-protected PDF.
Password-protect a PDF in your browser
When a document contains anything private — bank details, contracts, medical records — a password adds a real layer of protection. Protect PDF encrypts your file so that anyone who wants to open it must enter the password you set.
The encryption is applied on your own device, and the password you type is never sent anywhere. That is exactly how it should be: a tool that adds security should not create a new risk by uploading your file first.
Keep your password safe
Because the password never leaves your browser, it cannot be recovered if you forget it — so store it somewhere safe. Choose a strong, unique password for anything you actually need to keep secure.
Already have a protected PDF you own? Unlock PDF removes a password you know, so you can save an unrestricted copy.
Frequently asked questions
What if I forget the password?+
We cannot recover it — the password is never sent to or stored on any server. Keep it somewhere safe.
Is the password sent to a server?+
No. Encryption happens locally in your browser, and the password never leaves your device.
Will the PDF ask for the password in any reader?+
Yes. The file is encrypted, so any standard PDF reader will prompt for the password before opening it.