Add Watermark
Stamp a text watermark over your PDF in seconds. Control the text, size, opacity and angle, then download the watermarked file.
Runs in your browser — your file never leaves your deviceDrag & drop files here
or click to browse
Processed entirely in your browser. Your files are never uploaded.
Frequently asked questions
Can the watermark be removed later?
The watermark is drawn into the page content, not layered on top as an annotation — so it can't be switched off in a viewer. Like anything visible, a determined editor can attempt to paint over it, so treat it as attribution and deterrence, not encryption.
Can I control where and how strong the watermark is?
Yes — set the text, position (diagonal, centre, corners), size and opacity. A light diagonal watermark stays readable without wrecking the document.
Is Add Watermark free to use?
Yes — Add Watermark is completely free with no limits, no watermarks and no sign-up. It runs in your browser, so there is nothing to pay for.
Are my files uploaded or stored anywhere?
No. This tool does all its work locally in your browser using your own device's power. Your files never leave your device and we never see them.
Do I need to install anything or create an account?
No installation and no account needed. Add Watermark works on any modern browser — Windows, Mac, Linux, Android and iPhone.
How do I use Add Watermark?
Open the tool, add your file (or paste your content), adjust any options, then press “Add watermark”. Your result is ready to download in seconds.
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