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.
I think this will be possible by including the File Upload field in your form, you are able to set the extensions that you want to allow in the field, here is an image about it:
Here is also a guide about allowed types in the field:
This guide will help you to set up an email notification as well:
The uploaded file will be included in the email notification automatically when this is created.