Is it safe to lock my PDF here?

Yes, processing happens entirely in your browser. Your password and PDF never leave your device.

What happens if I forget the password?

Since we don't store your files or passwords, we cannot recover it for you. Please keep your password safe.

Which encryption method is used?

We use standard PDF encryption compatible with all major PDF readers like Adobe Acrobat and Chrome.

Can I use this tool offline?

Yes, once the page is loaded, it works completely offline for maximum privacy.

Yes, protecting your documents is completely free on RamenTask.

PDF Lock

Protect your PDF files with a password securely. 100% local processing, no uploads required.

Drag and drop or click to browse

Only PDF files are supported.

How to lock PDF with password locally

Learn how to secure your PDF documents with a password in your browser.

Upload PDF

Choose the PDF file you want to protect from your device.

Set Password

Enter and confirm the password you want to use.

Lock

Click 'Lock PDF' to encrypt the file locally on your computer.

Download

Save the password-protected PDF file instantly.

Frequently Asked Questions

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100% Private

Your files never leave your device. All processing happens locally.

Works Offline

Once loaded, the tool works without an internet connection for max privacy.

Lightning Fast

No server queues or upload wait times. Instant results in your browser.

SECURE & LOCAL

100% Local Processing

Your files never leave your device. All processing happens directly in your browser to ensure absolute security.

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