Adding a Watermark in DITA Map to XHTML Output
To add a watermark to the XHTML output of a DITA map transformation, follow these steps:
- Create a custom CSS stylesheet that includes the watermark image, as in the following
                  example:body { background-image: url(MyWatermarkImage.png); }
- Edit a DITA Map XHTML transformation scenario and in the
                  Parameters tab set the value of the args.cssparameter as the path to your watermark image.
- Set the value of the args.copycssparameter to yes.
- Apply the transformation scenario.
- Copy the watermark image in the output directory of the transformation scenario, next to the CSS file created in step 1.
