Certificate sign panel is nowere. Every time I dig internet to find how to do it. Why dont you put it right where someone will look for it? In the Fill and Sign panel? I don't need to write funny fake names instead a signature, neither to send the document. I have a generated pdf from some hospital software and just want to add the certificate signature of the doctor. All I find is how to write his name, draw lines, chekmarks and the certificate, that is loaded from a certificate reader is nowere.