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.
When already in the Paypal screen after submitting the form, you can simply close the browser and this will result to cancellation of the payment.
You can also set an Incomplete Payment E-mail on your Paypal form so that you will still get notification even for cancelled or abandoned paypal payments.
You can also just set the Payment form to NOT capture the payment at the time and only allow payment authorization only.
user guide: -How-to-Enable-Payment-Authorization
Let us know if you need further assistance.