Section 26.6 Watermarks
Output can contain a watermark, which is prominent text in the background of a document. You might use it to make a draft version (with a date?), or a CONFIDENTIAL version, or a document intended for limited distribution, such as an instructor's solution manual.
To use, specify the text, and an optional scaling factor to adjust the size. For example, in the <target> you want this, include the following lines:
<stringparam key="watermark.text" value="DRAFT 2034-05-25"/> <stringparam key="watermakr.scale" value="0.5"/>