Watermark a PDF
Add a diagonal text watermark to every page of your PDF. Fast and private: nothing leaves your device.
How to watermark a PDF
- Select your PDF.
- Type the text and adjust size, opacity and colour.
- Hit "Apply and download".
Frequently asked questions
Is the watermark added to every page?
Yes, the text is stamped centred on each page of the document.
Is my PDF uploaded?
No. Everything happens in your browser with pdf-lib; nothing is uploaded.