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'm afraid that we do not have that option for now. But we can guarantee you that the fillable PDF will work the same like the web form version and you can submit it using PDF Readers like Foxit and Adobe Acrobat.
Here's a link to know more about our fillable PDF: http://www.jotform.com/help/312-Fillable-PDF-Everything-you-need-to-know-about-JotFrom-fillable-PDF-creator.
But I have forwarded this thread to our developers. If there are updates to this feature, you should know it in this thread.