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.
I have checked this out on some of my own forms, and the Create PDF Form feature seems to be working correctly:
I have then cloned your form into my account for testing, and was able to replicate the issue with the cloned form. However, as soon as the captcha field is removed, the PDF can be successfully generated.
Please try removing the captcha field in order to generate the PDF from your form, and after the PDF is created, you may want to place the captcha field back onto your form. Please try it out and let us know how it goes. Thank you!