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. You should be able to upload a file to your form's file upload field even you're in the Free Plan. However, you have to note the storage limit for Free Accounts which is 100MB only.
What is the form URL in question so I can test it? Did you see any error when you attempt to upload a file? If so, can you let us know. A screenshot would explain it better.