File upload failed.

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    Asked on June 06, 2016 at 09:31 PM

    I have an upload form setup to allow up to 1GB/file uploads however, it appears that files over ~350MB are failing once uploading 100%.


    - TIFF Image File - 490MB - Failed after 100% (tried from several locations)

    - Same file renamed as ".ZIP" - Failed after 100%

    - ISO image file - 569MB - Failed after 100%

    - Compresed iso.xz file - 385MB - Failed after 100%

    - Compressed .zip file - 346MB - Accepted 

    - MSI file - 250MB - Accepted

    - Data File - 150MB - Accepted

    Very concerning as we just went live with this upload script and do have several people sending us files up to 1GB in size and really need this functionality to work.




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    Answered on June 06, 2016 at 10:53 PM

    I noticed that you are using script embed to embed the form to your page. There may be some scripts that are conflicting with the form which is causing the upload to fail. To resolve the issue, please embed the form to your page using the iFrame embed instead. Here's how: Getting the form iFrame code. If the issue persists, please let us know.

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    Answered on June 06, 2016 at 11:10 PM

    I tested against the direct URL and still have the same issues (files over ~350MB fail, files under that size are accepted). I tested this last week prior to going live with larger files (700MB+) and did not have issues, not sure what has changed? 

    I'm assuming by going to the direct link that script vs iframe does not matter, correct? 

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    Answered on June 06, 2016 at 11:27 PM

    I'm assuming by going to the direct link that script vs iframe does not matter, correct?

    This is correct.

    Please take note also that the JotForm max upload size is 1GB per upload session/submission.

    User guide: Changing-the-upload-size-limit

    From the screenshot you provided, I think you were exceeding the 1GB upload limit when you were testing the form.


    Try testing within the 1GB cap and make sure also that the upload field set to single upload mode only since it is more stable when uploading file size greater than 150MB.

    Hope this help. Let us know if issue still persist.


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    Answered on June 07, 2016 at 12:30 AM

    I have tested one file < 500MB and it fails. The screenshot was just to show multiple files (I added one at a time for testing purposes). Irregardless, according to the link in your reply:

    JotForm upload max size = 1GB or less per file (use 1048576 value in KB to set the 1GB limit)
    JotForm maximum number of files = Recommended value is up to 25 files per request (submission).

    I am not sure how else to read that? Says 1GB or less per file, recommended up to 25 files per request? But now you are saying 150MB or less per file? 

    Irregardless, if your product does not support this, then I'll need to find another solution. I do believe that the user guide and other references to file size need to be updated to let others know that the system only supports up to 1GB for single file uploads only (not the default multi file upload). This was a critical feature for my project so the proposed solution will not work, unfortunately -- I really did like the jotform interface.