How to Use Unlock PDF
- Upload your password-protected PDF
Drag and drop or click to browse for your locked PDF. The file stays on your device — it is never uploaded to a server.
- Enter the password (or run a dictionary attack)
Type the known password directly. If you have forgotten it, enable the dictionary attack to try common passwords, or paste your own list of candidates.
- Download the unlocked PDF
Click 'Unlock PDF'. The decrypted file with all restrictions removed is saved to your device instantly.
Why Unlock a PDF?
PDFs often come with password protection or restrictions that prevent printing, copying, or editing. Whether you've forgotten a password or need to remove restrictions from a document you own, this tool gives you full control back.
How It Works
- Upload – Drag and drop your password-protected PDF.
- Enter or Discover – Provide the password or run a dictionary attack.
- Unlock – Click "Unlock PDF" to generate a new, unprotected file.
- Download – Save your unlocked PDF with all content intact.
Security & Privacy
All processing is done locally using WebAssembly and JavaScript libraries like pdf-lib and pdf.js. Your files are never uploaded to any server. This means your sensitive documents and passwords remain completely private.
When to Use This Tool
- You have a PDF that you created but forgot the password
- You need to remove print or copy restrictions from a document you own
- You are consolidating documents and need to remove individual passwords
- You want to prepare a PDF for automated processing that requires unrestricted access
Limitations
- This tool cannot crack strong passwords (use the dictionary attack for common passwords only).
- It works with standard PDF encryption (AES-128, AES-256).
- It does not bypass DRM or other proprietary protection systems.
Frequently Asked Questions
What does "Unlock PDF" mean?
Unlocking a PDF removes password protection and any restrictions (like printing, copying, or editing). Once unlocked, the PDF can be opened and modified freely without a password.
Is my password sent to a server?
No. All processing happens entirely in your browser. Your PDF and any passwords you enter never leave your device. This is 100% private and secure.
What if I forgot the password?
The tool includes a dictionary attack feature that tries a list of common passwords. You can also enter your own list of possible passwords to try. For strong passwords, recovery may not be possible.
Can this unlock any PDF?
This tool can remove passwords from PDFs that use standard AES-128 or AES-256 encryption. It cannot bypass passwords on PDFs that use custom or proprietary encryption schemes.
Will unlocking change the content?
No. The content, layout, and formatting remain exactly the same. Only the encryption is removed. If you choose to strip metadata, that information will be removed.
Is this legal?
This tool is intended for unlocking PDFs that you own or have explicit permission to modify. Do not use it to bypass security on documents you do not own or are not authorized to access.