How to remove a password from a PDF
If you have a PDF that asks for a password every time you open it — and you know that password — you can strip the protection so it opens freely. This is useful for documents you own and re-read often, like statements or reports, where re-typing a password each time is just friction.
One important note up front: this removes protection from a PDF you can already open. It is not a way to break into a document you don't have the password for.
Step by step
- 1
Open the Unlock PDF tool
Go to the Unlock PDF tool and add your protected file.
- 2
Enter the password
Type the password you normally use to open the document. This is required — the tool decrypts with it, it does not guess it.
- 3
Download the unlocked copy
Run it and download a copy that opens without a prompt. Keep the original if you still want a protected version.
Removing vs. adding protection
There are two kinds of PDF passwords: a user password (required to open the file) and an owner password (restricts printing or editing). Unlocking removes the encryption so neither prompts you.
If you instead want to add a password before sharing a sensitive document, use the Protect PDF tool, which encrypts with AES-256.
FAQ
Can this open a PDF if I don't know the password?
No. You must provide the correct password — the tool decrypts the file, it does not crack it. That's by design.
Is the password sent anywhere?
Unlocking runs on the server (qpdf) over an encrypted connection; the file and password aren't retained and the output is deleted within an hour.
How do I re-protect it later?
Use Protect PDF to set a new password with AES-256 encryption.