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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.

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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    MySQL server has gone away error shown when submitting form with big attachments

    Asked by profibook on November 12, 2015 at 11:13 AM

    I have similar problem.

    When I want to send a few  big files ( 40mb together) receiving this error

    if the files are smaller everythng is ok.

    MySQL gone away server submit error
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    Answered by Ben on November 12, 2015 at 01:26 PM

    Can you please tell us if you are still receiving the same error?

    Also if you do, can you tell us what is the form where this happens for you so that we can check it out and see what is causing this.

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    Answered by profibook on November 13, 2015 at 04:24 AM

    Yes, still the same error.

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    Answered by profibook on November 13, 2015 at 04:43 AM

    problem arises when transferring files jpg. I suspect that the error arises when generating thumbnails for pdf file.

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    Answered by profibook on November 13, 2015 at 04:51 AM

    disabling generation of thumbnails to a pdf file solved the problem

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    JotForm Support

    Answered by beril on November 13, 2015 at 07:03 AM

    We are very glad to hear that the issue has been resolved for you.

    Let us know if you need further assistance.