Watermark PDF
Add a text watermark such as CONFIDENTIAL or COPY to every page of a PDF.
How it works
Choose the text, size, colour and transparency, then download the marked document. A diagonal watermark across the page is the hardest to crop out.
Frequently asked questions
Is this tool free?
Yes. It’s free to use, with no account and nothing to install.
Is my data private?
Yes. This tool works entirely on your device: nothing you enter or open is sent to a server.
Does it work on a phone?
Yes. It works in the browser of any recent phone, tablet or computer.