01 / Open
Choose the PDF
Every page shows as a thumbnail.
Free tool
Stamp a word such as CONFIDENTIAL, DRAFT or your name across the pages of a PDF. Set the angle, size, colour and how see-through it is, put it once in the middle or repeat it across the page, and choose which pages get it. Nothing is uploaded.
Watermark
A watermark marks a document; it does not lock it. Anyone with a PDF editor can still change the file.
The PDF is changed in your browser. It is never uploaded.
How it works
01 / Open
Every page shows as a thumbnail.
02 / Stamp
Text, angle, size, colour and how see-through.
03 / Save
The watermark is drawn on the chosen pages.
Questions
No. The watermark is added in this browser tab, which matters for confidential files.
It is drawn into each page, so it cannot be clicked away, but someone with PDF editing software can cover or remove it. Treat it as a label, not as protection.
Not in this tool. Use the PDF editor to place a picture on the pages.
No. The text stays selectable, and the watermark sits on top of each page.