Free PDF Lock & Unlock Tool Online

Use our Free PDF Lock & Unlock Tool to protect your PDF files with a password or remove existing protection. This tool works directly in your browser without uploading files.

How to Lock a PDF

1. Upload your PDF file.
2. Enter a password.
3. Click Lock PDF.
4. Download your protected file.

How to Unlock a PDF

1. Upload your locked PDF.
2. Enter the password (if required).
3. Click Unlock PDF.
4. Download the unlocked file.

Benefits

• No API required
• 100% free
• Fast processing
• Secure (files not uploaded)
• Works on all devices

FAQs

Q: Is this secure?
A: Yes, files stay in your browser.

Q: Can it remove strong PDF passwords?
A: No, it works for basic protection only.

Q: Does it work offline?
A: Yes, once loaded in browser.