| Where files are processed | In your browser. The file is never uploaded. |
|---|---|
| How long files are kept | Nothing is kept on a server, because nothing is sent to one. |
| Free limits | No caps on files, pages or tasks. Your device's memory is the practical limit. |
| Account | None |
| Price | Free |
| Ads | None |
| Offline option | No app. Works in any current browser, on desktop and phone |
Changes are made on your device, in memory. The original file is untouched and the new one is only created when you press the button.
Keep opacity low (15 to 30 percent) so the page stays readable.
It's drawn into the page, but a determined person with PDF editing software can still remove it. Don't rely on it for security.
Use the Add image tool with a low opacity.
PDF tools