if I have some report and i wanna before the user download this report through (
Export to pdf file)to make a specific action (like add a watermark to this pdf).
How to handle the export button?
note : i wanna some generic way cause i have a lot of reports , and i don't want to repeat the code . i wanna just to execute specific behavior to the
Assuming you have the original PDF without a watermark already accessible:
Implement something like this;
How can I insert an image with iTextSharp in an existing PDF?
Redirect or binary download watermarked file.