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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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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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    when i upload an image, the form says "extension no permitida", but the extension is ok.

    Asked by calidadyproyectosdtv on October 21, 2016 at 04:48 PM
    The problem star today around 9 AM local time, (Colombia)

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    JotForm Support

    Answered by liyam on October 21, 2016 at 10:39 PM


    I just checked your form and I was not able to replicate the problem. Can you confirm that the file you're trying to upload has the correct and allowed file type extension?

    You may also modify your upload field's file type extension as provided on this user guide: https://www.jotform.com/help/29-How-to-Change-the-Allowed-File-Types-Extensions-in-the-Upload-Field

    If the problem persists, please let us know.