Free tool · runs in your browser
Add a Watermark to a PDF
Stamp custom text like DRAFT or CONFIDENTIAL across every page — set opacity, size, colour, and diagonal layout. Free, private.
No signup · nothing uploaded · Free for files up to 30 pages / 25 MB
How it works
Drop in your PDF
Open locally — every page will be stamped the same way.
Design the watermark
Text, grey or red, opacity, size, and straight or diagonal.
Download the stamped PDF
Your text is drawn onto the centre of every page.
Mark a document the way it needs marking: DRAFT, CONFIDENTIAL, a client name, a date. Type your text, set the opacity, font size, and colour, choose straight-across or diagonal, and it stamps the centre of every page.
A watermark drawn this way sits on top of the page content — it is a visible mark, not document security. Anyone with a PDF editor can remove it, so treat it as a label rather than a lock. Nothing is added unless you type it; your output carries your text only.
Questions, answered
No. It is a visible label on the page. It can be removed with a PDF editor — use it to signal status, not to protect content.
More free tools
Need more than the free limit?
PDFDepth supports image watermarks, per-page placement, headers and footers, and applying marks to selected pages.
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