PDF / Watermark
Watermark a PDF online, on this device
Draws a diagonal stamp on every page (or selected pages). Opacity stays low so the text is still readable.
Last checked: September 2026. Confirm millimetres, pixels, and KB on the official form. Not a government website.
Upload
Drop a PDF, or browse
Type the stamp. Preview pages first, then burn it in at an angle.
Choose file01
Drop
Drop the file. It stays in this browser tab.
02
Preset applied
Set the cap or preset for this job.
03
Download
Download from this device. Nothing is uploaded.
FAQ
Questions, answered
Selected pages only?Open
Click pages in the preview first. If none are selected, every page is stamped.
Image watermark?Open
Use Sign PDF to stamp a PNG/JPEG instead.
Is the file uploaded?Open
No. Work runs in this browser tab. Close it and the PDF is gone.
Related systems
Continue in the suite
01 / pdf
Sign PDF
Stamp a signature JPEG or PNG onto the last page (or every page). This is ink on the page — not a certificate, not DocuSign.
02 / pdf
Number PDF pages
Writes “1 / n” at the bottom centre of each page. Local, no upload.
03 / pdf
PDF Metadata Remover
Clears title, author, dates, and the Info dictionary. Encrypted PDFs may fail. File never uploaded.