Password protect PDF
Lock a document so it opens only with your password.
Drop the PDF you want to protect
or click to choose (.pdf). Up to 25 MB per file.
Without this password nobody can open the document.
Neither the password nor the document is sent anywhere, the encryption happens in your browser. We cannot recover a forgotten password, so keep it safe.
- Runs right in your browser
- Free, no sign-up
More about Password protect PDF
How to password-protect a PDF
Upload the document, type the password twice and download the protected version. Without the password nobody opens the file, not even us. The encryption happens right in your browser, neither the document nor the password is ever sent anywhere.
- AES 256-bit: today's standard, supported by every common reader.
- AES 128-bit: only worth choosing when the document has to open in a very old program that cannot handle 256-bit.
Frequently asked questions
What if I forget the password?
The document stays shut and we cannot help with that. This is real encryption, not a lock we could work around. Put the password in a password manager before you send the file on.
What does the “no printing” option do?
It writes into the document that it should not be printed. Well-behaved readers respect it, but it is a flag in the file, not a real barrier. Anyone who can open the document can always see the content.
Is it safe to type a password into a website?
Here it is, because the page has nowhere to send it. The encryption runs in your browser and neither the document nor the password reaches a server.