I have configured Docassurance service in AEM6.1 by following the steps in https://helpx.adobe.com/aem-forms/6/configuring-document-services.html
how to add the signature to PDF. what are the next steps? can anyone help me on this.
Have you looked at the documentation here https://helpx.adobe.com/aem-forms/6/aem-document-services-programmatically.html#main-pars_header_42
Moving this thread to AEM "Forms" topic so to have better contextual experts have a look at this.