The ability to rotate the text for a text watermark would be HUGE for us.
We frequently want to run a text watermark (including the file name) down the side of a print (in the middle) so it doesn't get cropped in printing (when the aspect ratio changes from 4x6 to 8x10).
A checkbox with rotate text 90ยบ (Clockwise or Counter Clockwise) would be a HUGE time saver. We have to use another software and it adds several steps to our workflow.