Protect PDF

Use QPDF WASM to apply AES passwords and printing, modification, and extraction permissions.

1. 1. Add a source Upload a file in Protect PDF, or enter text or a link if the tool asks for it.
2. 2. Set options Adjust size, range, quality, or other controls in Protect PDF.
3. 3. Preview Let Protect PDF generate the result in this browser and confirm the preview.
4. 4. Save the file Download the output from Protect PDF and keep the original in case you need to retry.

Does Protect PDF upload my content?

Not to produce a result. Protect PDF runs in this browser and does not keep the input after you close the page.

When should I use Protect PDF?

Protect PDF: Use QPDF WASM to apply AES passwords and printing, modification, and extraction permissions. PDFs are split, merged, or exported in the browser when you do not want to send the original to a third-party host.

Do I need an account for Protect PDF?

No. Protect PDF can be opened and used without creating an account for a single conversion.

Can I use Protect PDF on a phone?

Yes, you can open Protect PDF on a phone. Simple conversions are fine; heavy editing and large files work better in a desktop browser.