Use RSign interface or iFrame RSign web application into sender application
Create a web form template (with fields, with or without e-sign)
Upload PDF or DOC form into web user interface
Drag and drop fillable form fields
Optionally add e-sign fields
Optionally map desired form fields in the template to sender application fields
Configure REST APIs or use a pre-configured CRM application like the RMail and RSign Salesforce.com app
Map the static link to an email template or website button