What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I'm not quite sure if I understand your question correctly.
Do you want to add your signature in a submitted form? Or do you want to show it in your form when it's filled by your users, like a pre-signed contract?
There are some widgets that you can use to sign a form, but I'm not sure when do you want to sign it. If you want to do this after the form is submitted, you would need to add the widget on your form and then edit the submission to include your signature in it. If you want to do it before the form is submitted then you could add an image of your scanned signature on the form.
I hope this helps.
If you need further assistance, please let us know.