Converter
Add PDF Watermark
Drop a PDF file here or click to browse
Stamp a text watermark on every page of your PDF. Runs entirely in your browser.
🔒 100% client-side — files never leave your browser
Drop a PDF file here or click to browse
Stamp a text watermark on every page of your PDF. Runs entirely in your browser.
Apply Watermark & Download
Stamp a text watermark on every page of your PDF. Runs entirely in your browser.
Frequently Asked Questions
What types of watermarks can I add?
Text watermarks (custom text, font size, color, opacity, angle, position) are supported. Common use cases include 'CONFIDENTIAL', 'DRAFT', copyright notices, and company names. Tile the watermark across the entire page or place it at a specific position.
Can I add an image watermark?
This tool currently supports text watermarks. For image watermarks, a desktop PDF editor or specialized tool is recommended.
Will the watermark affect the underlying text?
No. Watermarks are added as a new content layer on top of existing content. The original text and images remain intact and searchable. Viewers can see the watermark but the base content is unmodified in the PDF structure.