Make sure the signature control is selected in the editing space
Go to the Control Properties in the right panel
Select calculation for the Watermark control
You can use any string calculation here and it will display as a watermark over the signature
For example, if you configure the below calculation to join the current user’s name with the current datetime, then the watermark will display like this
Below the calculation, you can configure the below:
Text Color of the watermark text (by default, it’ll be black)
Horizontal and Vertical alignment of the watermark text
Use Preview Mode to test out what your watermark looks like