Do you offer an e-signature option on the form?

Yes we have signature widgets. 

You can use one of the following widgets:

E-Signature (signature field).

Smooth Signature (signature field).

DocuSign (integration with professional Electronic Signature service).

Inside of this guide you can find how to add widgets to your form:

https://www.jotform.com/help/252-How-to-Add-a-Widget-to-your-Form 

Hope this will help. Let us know if you need further assistance.