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.
So far this is not possible, the uploaded file will keep its original name and it cannot dynamically change.
If you want, we could forward this thread to our second level as feature request, but we cannot provide an ETA about when this may be implemented or ensure it will developed.
Please, let us know.