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.
Yes that is possible, you can upload your existing fillable PDF form to us and you can auto collect data from it.
Here's the Import Tool that you can use: http://www.jotform.com/adobe-formscentral-alternative/
Scroll down and see the Import button at the top right page.
Please do take note that the fillable PDF form won't be editable in our form builder. When the fillable PDF form shows up in your account, you can download it again.
You'll then have an option to auto collect data from it.
I hope that helps. Do let us know if you need more information on this.