Add a text watermark to a PDF

Mark documents as DRAFT, CONFIDENTIAL or with a name. Place one large diagonal watermark per page or tile it across the page, and control the opacity so the content underneath stays readable.

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How to use Add Watermark to PDF

Select a PDF.
Type the watermark text.
Adjust size, colour, rotation, opacity and layout.
Apply and download.

Supported formats

Input: PDF
Output: PDF

Layouts

Centre places a single mark in the middle of each page; Tiled repeats it in a staggered grid for stronger coverage.

Permanence

The watermark is drawn into the page content. It is not an easily removable layer, but it is also not a security feature.

Limitations

Text watermarks only (see Add Image for logos).
Text uses the built-in PDF fonts, which cover Latin (Western European) characters only.

Privacy

Files you choose are read into your browser’s memory and processed on your device; they are not uploaded to a server. Temporary download links are released after use, and the offline cache never stores your documents. More about privacy and limits.

Frequently asked questions

Can I use an image watermark?

Use Add Image to PDF and set an opacity for a logo-style watermark.

Does it support non-Latin text?

Text uses the built-in PDF fonts, which cover Latin (Western European) characters only.