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 apologized but I wasn't able to replicate the issue. I logged in to your account and I was able to open the uploaded files. Can you please try downloading the files and then verify if you can open them? Also, please open them in the Submissions area and not in the notification email.
Also, for troubleshooting purposes, please try another browser like Google Chrome or Mozilla Firefox. In this way, we'll be able to identify if it is a browser related problem.
Let me clear your form cache so that your forms will be refreshed from our servers. Let us know if you still can't open or download the uploaded files. Thank you.