Debug iTextSharp Digital Signature DLL

Some months ago you developed a C# web service that adds a digitally signature to a PDF using iTextSharp for me. I used the code you provided to make a DLL doing effectively the same thing. I did have it working at one point where the DLL actually applied the digital signature but at some point I inadvertantly broke it. What I need is for you to take a look at the code and help me debug it. I have some specific question that I should have asked when your originally delivered the code but all was well at that time and I did not have any questions. ## Deliverables Some months ago you developed a C# web service that adds a digitally signature to a PDF using iTextSharp for me. I used the code you provided to make a DLL doing effectively the same thing. I did have it working at one point where the DLL actually applied the digital signature but at some point I inadvertantly broke it. What I need is for you to take a look at the code and help me debug it. I have some specific question that I should have asked when your originally delivered the code but all was well at that time and I did not have any questions. One of the errors that I am getting now is ? ? ? ? ? ? ? ? ? ? ? ? The type or namespace name 'Org' could not be found (are you missing a using directive or an assembly reference?) ? on the statement: ? ? ? ? ? ? ? ? ? ? ? ? using [login to view URL]; ? and all the using statements with [login to view URL] or any of it code references.? What reference or assembly contains [login to view URL] classes and how are they brought into the project? ? Also errors are occurring when these variables are declared: ? ? ? ? ? ? ? ? ? ? ? ? private AsymmetricKeyParameter akp; ? ? ? ? ? ? ? ? ? ? ? private X509Certificate[] chain; ? I will also ask you some other question about the code just so I can better understand and support it. ? Are you available to help debug this code?