Protect PDF

Protect PDF — free & online

Password-protect a PDF online for free. Add encryption and a password so only the right people can open your document.

How to use Protect PDF

Upload your file

Open the Protect PDF tool and choose the file from your computer, or drag and drop it in.

Run Protect PDF

Click the button and GenPrompt processes your file in seconds — no software to install.

Download the result

Download your finished file straight away. There are no watermarks and your file is processed securely.

Related PDF tools

Protect PDF — frequently asked questions

Is the Protect PDF tool free?

Yes. Protect PDF is free to use with a GenPrompt account — there is no watermark on your output and no per-file charge.

Is it safe to use Protect PDF online?

Your files are processed securely over HTTPS and are not shared with third parties. Organisations with strict data-residency needs can also run the same engine in-house via a private licence.

Do I need to install software to use Protect PDF?

No. Protect PDF runs entirely in your browser. There is nothing to download or install.

Use Protect PDF free

Create a free GenPrompt account and get Protect PDF plus every other PDF tool.

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