Unlock PDF

Removes standard password protection from a PDF once you provide the current password.

No upload — runs on your device
Free, no sign-up
No watermark

What Unlock PDF does

Removes standard password protection from a PDF once you provide the current password. A PDF protected with a password can be inconvenient when you own the file and no longer need the protection, or need to edit it in a tool that can't handle password-protected files. This tool removes standard password protection once you provide the current password — it works with the standard 40-bit protection scheme most PDF tools use, not custom or enterprise-grade encryption schemes.

Works well with: Protect PDF · Compress PDF · Merge PDF

Runs 100% in your browser

PDFHook processes this file using JavaScript on your own device. It's never uploaded, stored, or seen by anyone else — and it works even if your connection drops mid-way.

HOW TO USE IT

Unlock PDF in 3 steps

Upload the protected PDF

Choose the password-protected file.

Enter the password

Type the password currently required to open it.

Download the unlocked PDF

The password requirement is removed permanently.

Key features

Removes the open password permanently
Works with standard 40-bit protected PDFs
Original content is fully preserved
Requires the current password, so it can't be used to bypass protection you don't own
Original content and formatting are fully preserved

Practical use cases

Someone owns a password-protected PDF and no longer needs the protection once it's safely stored elsewhere.
A user needs to edit a protected PDF in a tool that can't open password-protected files.
Someone consolidating old files wants to remove protection they set themselves and have since forgotten to need.

Related terminology

PDF password protection: A security feature requiring a password to open a PDF, using a security handler built into the PDF standard — different from more advanced encryption used for stronger, enterprise-grade protection.

Frequently asked questions

What if I don't know the password?

This tool removes protection once you provide the correct password — it can't recover or guess a password you don't know.

Which encryption types are supported?

Standard 40-bit password protection, the most widely used and compatible scheme. Newer AES-encrypted PDFs aren't supported yet.

What if I don't know the PDF's password?

This tool requires the current password to remove protection — it isn't designed to bypass or crack passwords you don't already know.

Does this work on all types of PDF protection?

It's built for the standard 40-bit protection scheme most PDF tools use; PDFs secured with stronger, non-standard encryption may not be supported.

Is there a free tool to decrypt a PDF online?

Yes — this decrypts standard password-protected PDFs for free, as long as you already know the current password; it's not a password-cracking tool.

Is there a free PDF password remover?

Yes — this PDF password remover is free; it works to remove PDF password and remove password protection PDF-wide, letting you unlock protected PDF files as long as you already know the current password to decrypt PDF online.