Add a text watermark to a PDF in your browser without uploading the file to a server.
How PDF watermarking works
The tool loads the PDF locally, draws the watermark text as an image layer over selected pages, and creates a new file to download.
The file is processed in the browser where possible and a new downloadable file is created.
Frequently Asked Questions
Is the file uploaded to a server?
No. The tool runs in the browser where possible and the file is not sent to a server.
Does it change the original file?
No. A new downloadable file is created.
Does it work on mobile?
Yes, but very large PDFs can be heavy on weaker devices.