ConvertWarp

Unlock PDF

Type the password. If it is wrong, the file stays locked. This does not guess a password.

Password protection uses pdf-lib-encrypt (MIT) and pdf-lib (MIT).

About this tool

Unlock PDF removes an open password you already know and are allowed to use, writing an unencrypted copy in the browser. It does not guess, brute-force, or break DRM you do not have rights to.

Wrong passwords leave the file locked. AES-128 and some compressed-object protections will not open in this browser build — the tool says so instead of sending the PDF to a cracking service.

pdf-lib-encrypt tries the password locally. 50 MB. Four-character minimum on Protect; unlock uses whatever the file actually has. Secure context required.

How to unlock a PDF

  1. Choose a locked PDF. It stays on your device.
  2. Type the password. A wrong one fails without rewriting.
  3. Download the unlocked PDF if it opens.

50 MB. No password guessing. Unsupported encryption schemes fail closed. You must have the right to open the file.

FAQ

Is the password sent to ConvertWarp?
No. Checking it happens in this tab.
Can you unlock a file I forgot the password for?
No. This is not a recovery or attack tool.
AES-128?
This browser build will not open that scheme. The message will say so.
Will annotations survive?
Usually the page content does. Treat exotic optional content as best-effort.
Then what?
Use Protect PDF if you need to lock a copy again with a new password.

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