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.
Thank you for contacting JotForm Support.
The max file size allowed to be uploaded from any form is 1GB per upload. Please be noted that free accounts have upload space allocation of only 100 MB, so if you try to upload a bigger file than 100 MB your account will become over quota.
Here ia guide which should help you understand the file limits in different integrations and how to change the file limits: http://www.jotform.com/help/33-Changing-the-Upload-Size-Limit
Hope this helps.
Do get back to us if you have any questions.