I made Rubber Stamp Annnot by an image file.
then, I'm trying to edit stamp's opacity.
I found getting stamp's appearance. and set opacity.
Show the below code.
if (this.GetType().ToString() == "e_Stamp")
Element element = null;
ElementReader reader = new ElementReader();
// "this" is object of current stamp annotation.
pdftron.SDF.Obj stm = this.GetAppearance();
if (stm != null)
element = reader.Next();
then, How to adjust element at page?
I don't know.. How to do...