FileGizmo PDF tools

Remove a known password from a PDF

Decrypt a PDF when you know its password and download an unlocked standard PDF locally. The password stays on your machine, because the work happens there.

Never uploadedYour file stays on this device
Drop your PDF here or click to choose a file PDF file · processed on this device

Simple by design

Unlock PDF in three steps

Remove password encryption from a PDF you are authorized to use. FileGizmo passes the known password to a local qpdf WebAssembly worker, preserving page objects and image quality.

Unlocking is only possible when you already know the password. This tool does not guess, brute-force, or recover a forgotten one, and there is no queue to submit a file to in the hope that something else does. If the password is genuinely lost, the document has to be reissued by whoever created it.

Encryption is removed rather than the pages being rebuilt. The qpdf engine rewrites the file’s security dictionary and leaves the page objects, fonts, and images exactly as they were, so text stays selectable and scans keep their original resolution. A file that has been through this tool is byte-for-byte the same document with the lock taken off, not a flattened copy of it.

The common reason to need this is an automatically encrypted statement. Banks, insurers, and payroll systems frequently protect a monthly PDF with a date of birth or the last digits of an account number, which makes the file useless to a search index, an accountant, or a screen reader. Removing the password once means the archive is readable later without hunting for the rule that generated it.

Some encrypted PDFs will not open here. Certificate-based encryption, which ties a document to an identity rather than a password, is outside what the bundled engine handles, and a file damaged in transit may fail to parse at all. In both cases the tool says so rather than producing a broken download.

Because the work happens in your browser, the password is typed into a page that has nowhere to send it. There is no request to inspect, no server log that could retain it, and nothing to delete afterwards. Open the network panel before you start and you will see the file and the password go nowhere at all.

  1. 1

    Choose a password-protected PDF

  2. 2

    Enter its current password

  3. 3

    Decrypt and download the unlocked PDF

Good to know

Frequently asked questions

Can this crack an unknown password?

No. You must know the valid user or owner password.

Is the password stored?

No. It exists only in the page while the local worker processes the document.

Does unlocking change page quality?

No. qpdf removes encryption without rasterizing or recompressing page content.

Can I unlock any encrypted PDF?

It supports encryption formats recognized by the bundled qpdf engine; damaged or certificate-encrypted files may not work.

Learn more

Related guides

PDF guideHow to remove a password from a PDF you ownTake the password off a bank statement, payslip, or policy PDF you own, entirely in your browser, plus what to do when the file refuses to unlock.