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.


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    Questions regarding uploading files to forms

    Asked by creicks on August 23, 2016 at 09:38 AM

    Is there a way to preview a file that was selected? (As a way to ensure the user uploaded the correct file)

     

    uploading files preview selected correct a
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    JotForm Support

    Answered by Rose on August 23, 2016 at 10:42 AM

    If you want to be sure file extension type, it is possible to adjust what you would like to allow your users to upload.


    You may need to have a look following user guide. It explains how to configure it step by step. 

    https://www.jotform.com/help/29-Which-file-types-are-allowed-for-the-upload-field


    If you need any further help by our side for this issue or any other, please do not hesitate to contact us.