“Adding Enable for commenting Adobe Reader” using Acrobat

Question

I am using iTextSharp to create on PDF document, later i want to add \"Adding Enable for commenting Adobe Reader\" using Acrobat, but i getting error as

Answer 1

You are asking something that is impossible: see http://support.itextpdf.com/node/24

Making a PDF reader-enabled requires a private key that is owned by Adobe. Any third party other than Adobe using that key, would be in violation with the law.