Is Password Protect PDF free to use?

Yes. This UpyogiTools feature is free to use and does not require an account.

Does UpyogiTools upload my working file?

No. The tool opens and processes supported working files locally in your browser.

Can I use Password Protect PDF on a mobile phone?

Yes. The interface is responsive and supports current mobile and desktop browsers.

PDF Tools · Free browser tool

Password Protect PDF Online

Add a password to a PDF with strong AES-256 encryption so only people with the password can open it. Free, private and processed in your browser.

Open Password Protect PDF →🔒 Local processing · No signup · Mobile ready

How to use Password Protect PDF

1
Choose the PDF you want to lock.
2
Enter and confirm a password.
3
Protect and download the encrypted PDF.

Useful for

✓ Confidential documents

✓ Bank and ID scans

✓ Sharing sensitive files

✓ Personal privacy

Privacy-first processing

The tool processes supported working files in your browser instead of sending them to an UpyogiTools file-processing server. Keep your own backup before editing, and verify every downloaded result before deleting the original.

Frequently asked questions

Is Password Protect PDF free?

Yes. It is free to use and does not require an account.

Is my working file uploaded?

No. Supported tool files are processed locally in your current browser session.

Will it work on mobile?

Yes. Use a current version of Chrome, Edge, Firefox or Safari for the best experience.

Related tools

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