Protect PDF with Password - Free PDF Encryption

Password Protect a PDF

Contracts, medical reports, salary slips and student records often travel by email, and email is not private. Adding a password to a PDF means that even if the file reaches the wrong inbox, the contents stay unreadable without the key. This tool encrypts your document in the browser and gives you back a protected copy in seconds.

What you can do with it

Add a password that must be entered before the file opens
Keep confidential documents private when sharing or emailing
The protection travels with the file, wherever it is opened
Free to use with no account required

How to use this tool

Upload the PDF you want to secure.
Enter the password you want to set and confirm it.
Apply the protection to the document.
Download the encrypted PDF and share the password separately.

Frequently asked questions

What happens if I forget the password?

The file cannot be opened without it, so store the password somewhere safe before you share the document.

Can the password be removed later?

Yes, if you know the password you can remove it again using the unlock tool.

Is it safe to send a protected PDF by email?

It is much safer than sending an open file. Send the password through a different channel, such as a message or a call.

Does protecting change the content?

No. Only encryption is added. Pages, text and images stay exactly as they were.