Add Watermark to PDF
Add a text watermark to each PDF page with local browser processing.
About, use cases, and privacy
About Add Watermark to PDF
Add Watermark to PDF is built for the specific pdf file to updated pdf workflow, not a generic upload page. Use it to organize, rotate, merge, split, remove, reorder, watermark, or clean PDF pages before sharing.
Processing happens locally in your browser where the selected format is supported, so files do not need to be uploaded for the normal workflow. The tool shows file details, output status, download actions, and practical warnings when a browser cannot safely decode or encode a format such as HEIC, TIFF, AVIF, or encrypted PDF.
Best practice: preview page order, keep an original copy, and download a test export before sending important documents.
Frequently Asked Questions
No. Page operations use browser-side PDF libraries for normal files and download a new PDF copy.