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Your files stay on your device

File processing runs in your browser. Documents are not uploaded to our servers. The site may download processing engines and send usage or feedback events without file contents.

How we handle your data

Unlock PDF

Remove the opening password from a technical record PDF using the password already on file, restoring open access for the archive. Files stay in your browser.

Small converter download on first use.

One PDF, up to 20 MiB. The original file stays unchanged.

Use at least 12 characters. Keep a copy: there is no password recovery.

Try an example

Download sample

This two-page sample is protected with the password result-open-63. Enter it and run Unlock PDF; the unlocked PDF should keep both pages.

What to expect

Protection uses AES-256 and sets a password to open the PDF; after opening, printing, copying and editing are not restricted. Unlocking requires the existing password; this tool does not guess passwords. Changing a PDF can invalidate digital signatures.

Processing stops after 30 seconds. Protected input can be up to 30 MiB; output is limited to 30 MiB.

The first run may download converter files and take a moment. If it fails, check your connection or try a smaller file. Cancel stops active processing; you can choose another file and retry.

Engine licenses and source code

A practical guide

Restore open access to the archived record.

  1. Choose the protected record PDF and enter its known password.
  2. Run Unlock PDF to produce an unprotected copy.
  3. Verify the copy opens without a password before archiving it.

Try this example

Unlock a protected record using its known password datum-archive-31; the resulting PDF should open directly without a password prompt.

Before you start: Only a password you already know is used; the tool does not guess or recover a password that has been lost.