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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    How can I dynamically resize images to a specific resolution that are uploaded in the form?

    Asked by salessupportDV on August 06, 2013 at 09:54 AM

    I have images of all sizes that are loaded into one of our forms.  These images need to have a specific resolution and I can't enforce this within the parameters of the form. I realize we can do this if we host the images utilizing php or other scripting validation, but that isn't feasible in the foreseeable future for now.

    Ideally, I wouldn't mind that the end-user uploads images of varying resolutions (they may not have an image of the correct size), as long as we are able to resize it automatically before it reaches Dropbox.

    I see functionality akin to that in Ink Filepicker.  It appears that I can only utilize that on forms that are hosted externally, using additional scripting.

    Is it possible to do this on the forms that you are hosting, using a Filepicker field so it resizes before it reaches Dropbox?





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    JotForm Support

    Answered by tasha_ize on August 06, 2013 at 12:32 PM


    Currently there is no functionality for images to be resized after they are uploaded. However you can set an upload limit on your form to restrict the size of images being uploaded. To set the upload limit please follow the instructions below.

    1. Select the upload field > Select Max Field Size

    2. Enter the maximum file size


    I know that the file size will not help to determine the actual resolution but it will help to control/restrict really big images from being uploaded.


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    Answered by Rob on September 25, 2013 at 08:42 PM

    I'm wondering if there has been any development on this?  We use Jotform and would also like very much to auto-resize images on upload.  Setting the filesize limit frustrates many users as they do not know how to down res/size their own images so they are effectively blocked from sending those files.

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    Answered by Cesar on September 25, 2013 at 08:56 PM

    Hello, kindly create a new thread to perform a feature request. As this question is off-topic from the original question asked. Thank you.