WebHerramientas

Unlock PDF

Remove passwords from protected PDF files securely

Unlock PDF

Local processing · Your password never leaves your device

Drop your protected PDF here

Use it only with your own documents or ones you're allowed to modify. Without the open password, the file cannot be unlocked.

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Free Online Unlock PDF

Remove password protection from a PDF so you stop having to type it in every time you open the file. Important: this tool removes a password you already know — for example a PDF you protected yourself or received along with its password — it is not designed to open PDFs whose password you don't know. If the PDF only has owner restrictions (it blocks printing or copying but opens without a password), they are removed directly. Supports RC4, AES-128 and AES-256 encryption, files up to 150 MB, and everything runs in your browser.

Why use Unlock PDF

  • Removes the opening password without uploading the file to a server
  • Supports RC4, AES-128 and AES-256 encryption, up to 150 MB
  • Doesn't change the document's content, only removes the protection
  • Instantly downloadable result, no sign-up
  • Instantly detects whether the PDF is locked, restricted or unprotected

How to use it in 3 steps

  1. 1

    Upload the protected PDF

    Select the PDF file that has an opening password.

  2. 2

    Enter the current password

    Type in the password you already know for that document.

  3. 3

    Download the PDF without a password

    The tool generates a copy of the PDF that opens without asking for a password.

Questions about Unlock PDF

Can I unlock a PDF if I don't know the password?

No. This tool removes a password from a PDF when you already know it; it is not designed for and does not work on documents whose password you don't know.

Is my PDF uploaded to a server to unlock it?

No, the file is processed directly in your browser with the password you enter; it's never sent to an external server.

Does it work with any kind of PDF protection?

It works with PDFs protected by an opening password (the one your reader asks for when you open the file). It also removes owner restrictions (blocked printing, copying or editing) from PDFs that open without a password. RC4, AES-128 and AES-256 encryption are supported.

Is there a file size limit?

Yes, the maximum supported size is 150 MB per file.

Is Unlock PDF free?

Yes, Unlock PDF from WebHerramientas is 100% free. No registration or subscription required. You can use it as many times as you need at no cost.

Is it safe to use Unlock PDF online?

Yes, all information is processed directly in your browser. We do not store or send your data to any external server.

Does Unlock PDF work on mobile?

Yes, the tool is fully responsive and works on any device: phone, tablet or computer with a modern browser.