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 accept uploads in your form by adding the file upload field to it, you will find it under the Basic Fields section in the Form Builder:
Here're also some guides related to the file uploads:
Here're also some widgets related to file uploads too:
This guide will help you to add a widget to your form:
However, if you're looking to upload a file to your form and allow your submitter to download it, then it will not be possible, you will need to upload the file to cloud service and then provide the link in the form, you could also attach the file in an email auto-responder, here's a guide that will help you with that: How-to-Attach-a-File-to-Autoresponder-Emails
Hope this helps.