Browser 106

max 500MB

Inspector pdf/unlock-pdf

Unlock PDF

Overview

Unlock PDF removes a password you already know from a PDF and strips owner-password restrictions like no-printing or no-copying, entirely in your browser. Drop your file and the tool detects whether a password is needed to open it; enter the one you know, or strip restrictions directly if the PDF opens freely. Decryption runs locally with qpdf compiled to WebAssembly, so your document and password never leave your device. This is not a cracker — it can only remove a password you provide.

Stop Re-entering a PasswordRemove the password from a file you open often so you're not prompted every time.
Enabling EditingStrip restrictions so you can annotate, merge, or compress a PDF that blocked changes.
Allowing PrintingRemove a print restriction from a document you're authorized to print.
ArchivingStore long-term documents without an open password you might forget later.
Preparing for Other ToolsUnlock a PDF so tools that can't read encrypted files can process it.

Key features

Remove a known open password
Strip printing/copying restrictions
Detects whether a password is needed
Runs entirely in your browser
No upload — fully private

Set

PDF Tools 17

Neighbours

01 Add Page Numbers to PDF 02 Compress PDF 03 Delete PDF Pages 04 Extract PDF Pages 05 Fill and Sign PDF 06 JPG to PDF

Specification

Command: pdf.unlock_pdf
Set: PDF
Input: PDF
Output: PDF
Max file: 500MB
Batch: single file

Runtime

Engine: pdf-lib · pdf.js · qpdf-wasm
Threads: single
Isolated: —
WebGPU: —
Memory: —

Transport 0 B

The file is opened, worked on and written back inside this tab. No upload step exists in this tool — there is nowhere for the bytes to go.

Keys

Search: ⌘K
Panels: ⌘1 · ⌘2
Full width: F
All keys: ⌘/

How it works

Open your PDF

Drop the protected PDF. The tool detects whether it needs a password to open.

Enter the password

If it's needed, type the password you already know. If the file only has restrictions, you can strip those directly.

Download the unlocked PDF

Get a copy with the password and restrictions removed — nothing is uploaded.

Frequently asked

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

No. This tool removes a password you already know — it is not a password cracker and cannot recover or bypass an unknown password.

Is my password sent anywhere?

No. Decryption runs locally with qpdf compiled to WebAssembly, so your PDF and password never leave your device.

What if the PDF opens but blocks printing or copying?

That's an owner-password restriction. The tool detects it and lets you strip the restrictions so the PDF can be printed and copied freely.

Why remove a password?

So you don't have to type it every time you open the file, and so you can edit, print, or combine it with other tools that can't handle an encrypted PDF.

Is the content changed?

No. Only the encryption and restrictions are removed; the pages, text, and images are preserved exactly.

Keys

Search: ⌘K
Panels: ⌘1 · ⌘2
Full width: F
All keys: ⌘/

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