Add Watermark
Stamp text or image watermarks onto all or selected PDF pages.
100% client-side: your files never leave your browser
Watermark Settings
Drop a PDF file here to add a watermark
PDF sizes up to 50MB
Client-Side Watermarking
This utility edits your PDF structure natively in JavaScript. Text watermarks are drawn in HelveticaBold with precise transformation matrix adjustments, ensuring clean rendering at any zoom level.
For image watermarks, using transparent PNG logos is recommended.