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.
That is possible, you can create an autoresponder to send an email to your users their copy of the submission, here's a guide that you can follow: http://www.jotform.com/help/26-Creating-a-Form-Autoresponder
You can also add a PDF link in your autoresponder's email body so that your users can download the submission directly.
Do let us know if you need more help on this.