I need working code for Digitally Signing a PDF using ITextSharp 5.5.9, inside an MVC application. I already have code for creating the PDF (but not signing it) and it runs inside of a website (currently hosted in Azure). You will be able to download the project and it will run fine as an MVC project on your PC (as localhost) using ITextSharp. But, I have not written the code for Digitally Signing a PDF using ITextSharp. I need your help for this. Can you do it?