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 could be that attachment was not fully uploaded so the file is not complete. A good way to avoid such problems is to enable multiple uploads in your form so your users can see the progress of the uploaded file and see that the file is actually uploaded:
Additionally, you can share the submission IDs where the files are missing so we can have a closer look.
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