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.
If you would like to create a theme based from your existing form's design, you can do that by navigating to this link: https://www.jotform.com/mythemes.
From there, click "New Theme" and you will be directed on a step by step process on how to publish or save a theme.
I hope that helps. Do let us know if you need further assistance on this.