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.
If your form with uploaded file field is linked to several emails, I mean Notifiers will go to several emails, they will all receive a uploaded file, of course.
Otherwise, nobody can access your uploaded file if you didn't grant them the access somehow.
If you had something else in mind please clarify further, we'll be glad to assist.
An update, we just introduced one more layer of security for uploaded files, please check this article from our founder: https://www.jotform.com/blog/259-Keeping-Your-Uploads-Secure
If you have any further questions please let us know.