Electronic signature in Share Point Document library

DocuSign eSignature services has been helping several industries sign documents electronically, eliminating the need for printing/Faxing.
ESIGN Documents in SharePoint 2007 feature uses DocuSig to enable the SP users sign documents or send signature requests from a document library without downloading a copy.

Create SharePoint Document Library programmatically using C#

We can create our own custom document library programmatically, here is the code shown below

SPSite site = SPContext.Current.Site as SPSite;
SPWeb web = site.RootWeb as SPWeb;
try
{ //Create a new library as the permanent library
Guid customListID = web.Lists.Add("CUSTOM DOCUMENT LIBRARY", "CUSTOM DOCUMENT LIBRARY", SPListTemplateType.DocumentLibrary);
web.Update();
}