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 it is possible.
You can achieve that by adding File Upload field to your form. Inside of this guide you can find how to create a file upload form: https://www.jotform.com/help/332-How-to-Create-File-Upload-Forms
You would also need to allow extensions for formats that you want to accept:
And you will need to increase the file upload size limit of your upload field:
However considering that you have free account, please note that for free account available account upload space is 100 MB.
More about different account types and limits you can find on our pricing page.
Hope this will help. Let us know if you need further assistance.