The Add Watermark from Data Route Advanced Settings is a feature specific to certain data route document output types, such as PDF and MS Word, offering the option to add a watermark to your document. In addition to allowing you to add any custom text, this watermark feature offers the added benefit of being dynamically generated using values from the merged field maps.
Data Route Add Watermark
The Data Route Advanced Settings section provides access to more complex and detailed configuration options for your data route.