Free Tools/PDF Tools

Protect PDF

Add password protection to a PDF. The output genuinely requires the password to open — encryption happens entirely in your browser.

Drag & drop a PDF here, or click to browse
Your files never leave your browser — everything is processed locally.
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About the Protect PDF

Protect PDF is a free, browser-based tool from AIVEXA's pdf tools collection. Add a password to a PDF. It works instantly in your browser — no signup, no installation and no watermark — and is one of 89+ free tools available on AIVEXA, covering PDF editing, image editing, everyday calculators, document generators and Islamic tools.

Frequently Asked Questions

Is Protect PDF free to use?

Yes, Protect PDF on AIVEXA is completely free to use with no signup, no watermark and no hidden limits.

Do I need to create an account?

No account or login is required. Just open the tool and use it directly in your browser.

Is my data safe when I use this tool?

Most AIVEXA tools run entirely in your browser (client-side), which means your files and inputs are processed on your own device and are not uploaded to a server.

Can I use this tool on mobile?

Yes, this tool works on any modern browser — desktop, Android or iOS — without installing an app.

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