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, you can't print in-completed payment forms. The only way would be to manually complete the submission, you would then be able to view in the submission page. Where you can print the submission data.
The BAD thing about completing a submission is the person who filled out the form gets an email STATING THEY COMPLETED IT! It can cause serious confusion on both ends, where the customer can print out the email stating it was completed, when actually all we did was complete the submission for printing. there has to be a better way!!
You may consider enabling email notifications for incomplete submissions (to you) and printing them. Please take a look at the following guide.