programmatically creating a .pfx file

Is there a way to programmatically creating .pfx file certificate? I would like to use it to sign PDF. I would get the data of client from database then construct the file so when they click sign pdf, it would go o开发者_如何学编程ut and get the pfx file that has been constructed and stored in database and then sign pdf with that file. so my goal is how to create the file? I am using C# 4.0.

You can use the ChilKat library. You will need the PEM file though, here is the link: http://www.example-code.com/csharp/pfx_fromPem.asp