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KioTools
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  • Runs locally

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Unlock PDF

What is this tool?

A PDF unlocker. You enter the password of a protected PDF and it saves a copy that opens without one. For a file that opens without a password but forbids printing, copying or editing, it saves a copy without those restrictions. It does not guess or crack passwords: without the correct one the file stays locked.

When to use it

  • Taking the password off a statement or form you open every day
  • Preparing a protected PDF to merge, split or edit
  • Removing a print restriction from a document you are allowed to print
  • Making a copy that opens in any viewer without a prompt
  • Re-protecting a file with a new password (unlock it, then use Protect PDF)

How to use it

  1. 1Drop in the protected PDF — the tool tells you how it is locked
  2. 2Enter the password (not needed for restrictions-only files)
  3. 3Click Unlock PDF
  4. 4Download the unlocked copy

Frequently asked questions

Can it open a PDF if I forgot the password?

No. It needs the correct password and never guesses or cracks one. If the password is lost, the contents can't be recovered.

What if the PDF opens but I can't print or copy?

That is a restrictions-only file. Drop it in and choose Remove restrictions to save a copy without them. Only do this for files you have the right to use that way.

Does the original change?

No — you get a new copy and your original file is untouched.

Is my PDF or password uploaded?

No — decryption happens entirely in your browser; neither the file nor the password leaves your device.