PDF Lock/Unlock Tool - Secure Your PDF Files

Upload PDF

Drag & drop your PDF here or click to browse

Upload a PDF file to either lock it with a password or remove its existing password protection.

Password Settings

Password

Confirm Password

Processed File

Ready to process PDF

Processing your PDF file...

document_protected.pdf

2.4 MB • Password protected

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Free PDF Lock and Unlock Tool

Our PDF Lock/Unlock tool allows you to easily add password protection to your sensitive PDF documents or remove passwords from PDFs you have permission to access. All processing happens directly in your browser for maximum security.

How to Use This Tool

Select whether you want to lock or unlock a PDF
Upload your PDF file using the drag & drop area or file browser
For locking, enter a strong password and confirm it
Click the appropriate button to process your PDF
Download your secured or unlocked PDF file

Common Use Cases

Protecting sensitive documents with password encryption
Removing passwords from PDFs you've legally acquired but need to edit
Securing financial documents before sharing
Unlocking PDFs for accessibility purposes
Protecting personal documents stored in the cloud

Frequently Asked Questions

Is this PDF tool free to use?

Yes, our PDF Lock/Unlock tool is completely free to use with no limitations.

Are my files secure when using this tool?

Absolutely. All processing happens directly in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

What is the strength of the encryption used?

Our tool uses strong AES-256 encryption for maximum security when locking your PDF files.

Can I unlock any PDF with this tool?

This tool is designed to unlock PDFs for which you already know the password. It cannot break encryption on protected files without authorization.

Privacy Note: All PDF processing occurs locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.