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.
You can create an autoresponder email: Setting Up Form Autoresponder then add the Download Link to the email body. After the client submits the form and sends you the payment, he/she will be able to receive the email and download the digital product from there.
If this involves multiple product, we still have the method of allowing clients to download only those products that they paid for. Let us know if this is something what you want.