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, we don't support this feature at the moment. You are using HTML code from Paypal's add to cart button in the Text tool. The button adds to the user's cart on click but it will have to redirect to PayPal page.
We currently support one-time payments or subscriptions.
You could read on our PayPal integration and see if you could use it somehow.