when I try to add page numbering to a new pdf document - everything goes fine, but when i try to add page numering again to the same pdf file (using the very same code), it crashes.
to be more precise, the new PdfFileStamp object creation ( new ) with the 2 streams returns the following error: Read Pdf Error: input string was not in a correct format.
Any help would be much appretiated
ps. apparently the same thing happens when trying to add a stamp to bind a watermark to an already "stamped" document