Is there a way to obtain electronic signatures on these forms?

Hi there, unfortunately JotForm doesn't support electronic signatures. However, there's a free service called Saydoc that gives you eSignatures. Check it out. Hope that helps.

Thank you for contacting us. 

The E-signature fields can be found under the Widgets. We have the following options available.

Smooth Signature

E-Signature

Adobe DC eSign

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

http://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.