Watermark PDF — Free
Processed entirely in your browser. Your file is never uploaded to a server.
Drop a PDF file here or click to browse
This tool stamps a semi-transparent text watermark diagonally across every page of a PDF.
Set your watermark text, then drop your PDF above. The watermarked file downloads automatically once ready.
FAQ
Can I remove the watermark later?
Not with this tool — the watermark becomes a permanent part of the page content.