PDF Watermark
Stamp a diagonal text watermark across your PDF pages.
About PDF Watermark
PDF Watermark lets you add a text watermark to PDF pages — free, and without creating an account. Stamp a diagonal text watermark across your PDF pages.
Everything happens locally in your browser. Your PDF is processed on your own device using your browser's built-in capabilities, so it is never uploaded to a server and never leaves your computer. That makes PDF Watermark fast — there is no upload or download wait — and private by default.
Because it is web-based, PDF Watermark works on any operating system — Windows, macOS, Linux, Android, and iOS — straight from your browser, with nothing to install.
Cómo funciona
Open the tool
Load PDF Watermark in your browser — no signup or download needed.
Add your PDF
Drag and drop your PDF onto the drop zone, or click to choose a file from your device.
Adjust the options
Pick any settings the tool offers. Processing happens instantly in your browser.
Download the result
Save the finished PDF to your device. It was never uploaded anywhere.
Frequently asked questions
Is PDF Watermark free?
Yes. PDF Watermark is completely free to use, with no signup and no limits on how many times you can use it.
Are my files uploaded to a server?
No. PDF Watermark processes your PDF entirely in your browser. Files never leave your device, so your data stays private.
Do I need to install anything?
No installation is required. PDF Watermark runs in any modern web browser on desktop or mobile.
¿Es privado?
Sí. PDF Watermark funciona por completo en tu navegador usando la potencia de tu dispositivo. Tus archivos nunca se suben a un servidor, así que nada sale de tu ordenador.