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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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    Not recognizing a pdf?

    Asked by FlashpintGallery on October 03, 2011 at 11:02 AM

    I've had a number of users report that when completeing the form they receive an error message that not all required information has been completed.  Additionally they're getting a message that they are trying to upload in invalid document form.  (The form is set to accept only PDF.  In all cases so far the users are trying to submit valid PDFs.)

    This is an inconsistant issue, as we're recieved more than 500 submissions already, but the number of complaints about this specific problem is growing.  Any suggestions?

    Page URL:

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    JotForm Support

    Answered by Mike_T on October 03, 2011 at 05:35 PM

    We are sorry for the inconveniences caused.

    The problem is most probably related to some bugs through submissions in different browsers. Could you please provide us with the information about browsers versions of your customers which were not able to upload valid PDFs? Then, we will try to reproduce the problem and forward it to our developers.

    As a temporary solution you may try to recommend to your customers using Google Chrome browser.

    Thank you for using our services!

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    Answered by jalarcon on October 03, 2011 at 05:37 PM

    Please make sure that they are uploading PDF files that do not exceed the filesize limit. I also would like to encourage your participants to try using a different browser when submitting.

    We recieved reports having issues on uploading with Mozilla Firefox today and our development team are trying to investigate the problem.

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    JotForm Support

    Answered by liyam on October 04, 2011 at 06:40 AM

    The bug here seems to have been fixed.  Please change the URL of your secure form to


    If the bug still persists, please let us know.