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.
Unfortunately such function is not available from our Form Builder. Nevertheless, you can obtain your Form's Source Code and have a Web Developer implement this function on to your form.
Please review this guide on how to obtain your Forms Source Code:
Do let us know if you need any other assistance. Thank you.