i really need a digital signatures feature, which i was surprised was not supported by your library. historically, we have used WebSuperGoo's ABCPdf product, which produced good results and had support for digital signatures, but they were SO expensive and arrogant as hell, which is why we are looking to alternatives. OH! and they broke when customers upgraded to IE9!

however, applying digital signatures was very easy with their API. it looked like:

WebSupergoo.Annotations.InteractiveForm pForm = new WebSupergoo.Annotations.InteractiveForm(pPDFDocument);

string sCertFile = @"c:\my_cert_file.pfx";
WebSupergoo.Annotations.FormField pSignatureField = pForm.AddSignature("40 100 240 150", "Signature", sCertFile, sCertPassword, "My Signature Reason", "My Signature Text");

it would be greatly appreciated if you would add support for this crucial capability. we are in the healthcare industry and ALL documents must be electronically signed.

thanks!