Drawing a watermark over a field works just fine on 8.5 X 11, but doesn’t on any other paper size.
In the attached eXample change the file to Sample1.pdf to see it work, then Sample2.pdf to see the problem.
Stamp.zip (…...5 x 14 Aspose.PDF Product Family alistairw...field works just fine on 8.5 x 11, but doesn’t on any other paper...