How to remove a password from a PDF (when you know it)

If you know the password, you can remove it in a minute: drop the PDF into Unlock PDF, type the password once, and download a copy that opens without asking. If you don't know the password, no honest tool can remove it for you — and this one doesn't try.

The quick way

1. Open Unlock PDF and drop the protected file.
2. Type the Password. Leave it empty if the file opens without a password and only blocks printing or copying.
3. Tick This is my document, or I have permission to unlock it.
4. Click Unlock PDF and download the unlocked copy.

The file and the password stay in your browser: nothing is uploaded. The unlocked copy keeps the same pages, text, images and fonts; nothing is re-compressed.

The two kinds of PDF password

A PDF can carry two different passwords, and it helps to know which one you are dealing with.

• The open password (sometimes called the user password). The file won't show anything until you type it. Bank statements, payslips and tax documents often use this, sometimes with a password based on your date of birth or customer number — the sender usually explains it in the email or letter.
• The permissions password (the owner password). The file opens normally, but printing, copying text or editing is blocked. You often don't know this password, and you don't need to.

Unlock PDF handles both cases: with the open password, it produces a copy that opens directly; for a file that opens freely but is restricted, leave the password field empty and the restrictions are removed.

What this tool won't do

It does not guess, crack or recover passwords. If a PDF asks for an open password and you don't have it, the tool can't help — by design. Your options are to ask the sender for the password or for an unprotected copy.

Only unlock documents that are yours or that you have permission to modify.

Common problems

"That password is not correct." Passwords are case-sensitive. Check upper and lower case, look for a space copied by accident at the end, and re-read the instructions that came with the file (date formats such as DDMMYYYY are a frequent trap).

"This PDF isn't protected." The file has no password and no restrictions. You can use it as it is. If an app still refuses to print it, the problem lies elsewhere.

"This PDF could not be unlocked." The file may be damaged, or it may use an unusual protection system — for example, some documents protected by digital rights management (DRM) software. Those can't be opened with a simple password.

The unlocked file looks different. It shouldn't: the content is copied as it is. If a form's answers have disappeared in a phone viewer, that's a display issue with form fields, not the unlocking.

Why remove a password?

Typical reasons: you are tired of typing it each time you open a monthly statement, you need to merge several protected files into one for your accountant, or a restricted form refuses to print. Tools that edit PDFs generally can't work on an encrypted file, so unlocking a copy first is often the only way.

Put protection back when you share it

An unlocked statement or payslip is readable by anyone who gets the file. Keep the original somewhere safe, and if you need to send the unlocked copy, protect it with a new password of your choice. Send that password by phone or text message, never in the same email as the file. The guide how to password-protect a PDF explains how to choose one.