public class SignatureLine : DocumentElement 

var signatureLineOptions = new SignatureLineOptions()

{

  AllowComments = true,

  ShowDate = true,

  Instructions = "Please sign this important document.",

  Signer = "Mark Stone",

  SignerTitle = "President",

  SignerEmail = "mark.stone@mycompany.com"

};



// Add the SignatureLine to the document.

signatureLine = document.AddSignatureLine( signatureLineOptions );



// Insert the SignatureLine in a document's paragraph.

myParagrah.AppendSignatureLine( signatureLine );