How to Remove a Password From a PDF (When You Know It)

Can you remove a password from a PDF?

Yes, as long as you know the password. You can remove a password from a PDF by opening the file with it once and saving a copy without protection, either with ProPDF Unlock or with software you already have. The copy then opens, prints and copies like any other PDF.

This guide is for PDFs you own or are allowed to use, and whose password you know. ProPDF has no feature that guesses or recovers a password.

You will also learn how to tell the two kinds of PDF passwords apart, what happens to your document during unlocking, and when it is wiser to leave the protection in place. The last sections show how to put a password back, what to do when unlocking fails, and where to look if the password is missing.

Two kinds of PDF passwords

A PDF can carry two different passwords, and a file can have one of them or both. An open password, sometimes called a user password, is requested as soon as you try to open the file. Without it, the content stays encrypted and nothing can be displayed.

A permissions password, sometimes called an owner password, works differently. The file opens normally, but printing, copying text or editing may be blocked. This second password is what allows someone to change or lift those restrictions.

To find out which one you face, open the file in your usual PDF viewer. A password prompt right away means an open password. A file that opens but refuses to print or copy has restrictions set with a permissions password, and the document properties in many viewers list these security settings.

Type the password that matches: the open password for a file that will not open, the permissions password for a file that opens with restrictions. If you do not have it, ask the sender or the document owner.

Remove the password with ProPDF Unlock

ProPDF Unlock takes a PDF and its password and returns a copy with no password and no restrictions. It is free, with no account and no subscription, and accepts files up to 4 MB.

1. 1 Open ProPDF Unlock, then drop your PDF on the upload area, or click or tap the area to choose the file. A file larger than 4 MB is refused with a message that gives the maximum size.
2. 2 Check that the file name and size shown match the document you want to unlock.
3. 3 Type the password in the password field. The eye button shows the characters, which helps you catch typing errors.
4. 4 Select Unlock and download. The button becomes active as soon as the field contains something.
5. 5 Wait for the unlocked copy to download automatically. It keeps the original name with _unlocked added, so report.pdf becomes report_unlocked.pdf.
6. 6 Open the copy and confirm that it no longer asks for a password and that printing and copying work.

What happens to your file and your password

Unlock is one of the eight ProPDF tools that run on a server. Your PDF and the password you type are sent over HTTPS to the ProPDF server on AWS in the Paris region (eu-west-3). The server opens the file with the password, saves a copy without encryption and sends it back to your browser.

The file is deleted from the server when the task ends, and neither the document nor the password is kept. If the password does not match, the server refuses the file, the page shows an error and nothing is downloaded. The tool makes a single attempt with what you typed and never tries other passwords.

Unlock handles standard PDF password encryption. Some organizations instead encrypt a PDF for named recipients with digital certificates: such a file opens only with the matching digital ID, and ProPDF Unlock cannot process it.

Once the copy is ready, the "File ready" panel offers to continue with it in another tool, such as Compress, Edit, Sign or Merge, without choosing the file again, and lets you download it again if needed. Unlocking often has to come first anyway: Compress and PDF to Word both refuse a file that needs a password to open.

Other ways with software you already have

You don't need an online tool if the file opens on your computer with its password and you have a desktop PDF editor, or if you made the PDF yourself. Each way has its conditions.

The first is to change the security settings in a desktop PDF editor. Full PDF editors usually let you open the file with its password, set the document security to none and save a copy. If the file has a permissions password, the editor asks for it before it lets you change the security.

Because the pages are not re-rendered, links and form fields normally stay in place, and the text stays as sharp and as easy to select as in the original.

The second works for a PDF you made yourself, from a text document, a spreadsheet or a presentation: open that original document and export it to PDF again without setting a password. The new PDF shows the document as it is now, so check that it matches the version you protected.

Whichever method you use, keep the original protected file and give the new copy a clear name. That way you always know which version is safe to share.

When you should keep the password

A password is often there for a good reason. An unlocked copy opens for anyone: it can be forwarded, synced to a shared folder or forgotten in your downloads folder.

Think twice before unlocking documents that hold financial, medical, legal or identity information, such as tax returns, pay slips, bank statements, contracts, medical reports or scans of an ID card. If you need to work on one of them, a few habits limit the risk:

• • Unlock a working copy, make your changes, and protect the final version again.
• • Keep the original protected file as it is.
• • Delete the unlocked copies you no longer need, including the one in your downloads folder.
• • When you share a protected file, send the password through another channel, for example by text message for a file sent by email. A single intercepted message is then not enough to open it.

How to protect the file again

ProPDF Protect puts a password back on your PDF with AES-256 encryption: the password is required to open the file. Like Unlock, it runs on the ProPDF server in Paris. The file is sent over HTTPS, encrypted, returned to you and deleted when the task ends.

Protect sets a single password and has no separate options for printing or copying, so give the password only to people who may read the whole document. ProPDF does not keep the password: store it in a password manager, because nobody at ProPDF can retrieve it for you later.

1. 1 Open ProPDF Protect and choose your PDF, up to 4 MB.
2. 2 Type a password, then type it again in the confirmation field. Both entries must match.
3. 3 Check the strength indicator. It shows Medium from eight characters with at least one letter and one digit, and Strong from 12 characters with at least one symbol.
4. 4 Select Protect and download. The protected copy downloads with _protected added to its name, for example report_protected.pdf.
5. 5 Open the copy to confirm that it asks for the password before showing anything.

If unlocking doesn't work

Check these points before you try again. Each one matches a situation that stops the unlock or makes it look as if nothing happened.

• • The password is rejected. Passwords are case-sensitive, so check Caps Lock and your keyboard layout, and watch for a space copied along with the password. Characters that look alike, such as the letter O and the digit 0, are easy to confuse; the eye button shows what you actually typed.
• • The file is larger than 4 MB. Server tools accept files up to that size, so ProPDF cannot unlock this one. Use one of the methods with your own software, or ask the sender for a smaller or unprotected copy.
• • The file uses certificate encryption. It opens only with the digital ID it was made for. Ask the sender for a version protected with a password instead, or for an unprotected copy.
• • A message asks you to wait. The server tools share their capacity, and when many requests arrive at the same time you are asked to wait a moment. Try again after a short pause.
• • The copy still asks for a password. Make sure you are opening the new file, whose name ends in _unlocked, and not the original.
• • Nothing was downloaded. Check whether your browser blocked the download, then use the Download again button in the panel that appears after processing.

What to do if you don't have the password

ProPDF Unlock works only with the correct password: it cannot recover, reset or get around one.

Only unlock files that you own or that you have been allowed to use. ProPDF cannot retrieve a lost password either, even for a file protected with ProPDF Protect, because it never keeps passwords.

In practice, a missing password can often be found again or replaced by a new copy of the file. Start with the people and messages closest to the file:

• • Ask the sender. The person who sent the file can give you the password or send an unprotected copy. A separate channel, such as a phone call or a text message, is safer for the password than the email that carries the file.
• • Check the message that came with the file. The password may be in the same email, in a second email sent right after it, or in instructions from the organization that sent the document.
• • Look in your password manager. If you protected the file yourself, you may have saved the password there or in your notes.
• • Ask the issuer for a new copy. For a bank statement, a pay slip, a tax document or a medical report, the organization that issued it can often resend the file or tell you which password it uses.
• • Go back to your original. If the PDF is yours, the unprotected source, such as the Word file, the spreadsheet or the first export, may still be on your computer or in a sent email. Export it again as a PDF.