Minimum and maximum image size (pixels)

Our committee has deemed that the want a maximum file size of 3840 x 2160 pixels. The system here seems to be the reverse where set sizing is based on a minimum e.g. 3000 x 2000 px. The could lead to some participants submitting images as large as 20,000 pixels on one side. Is there no way to set a MAXIMUM image size where the criteria is based on the prefered sizing?

Our minimum resolution feature is designed to prevent images from being submitted that are too small for a specific use case, such as a photo calendar. A maximum size has not been requested yet, because you can scale the images down. Or is your goal a certain aspect ratio? Please describe your use case in a little more detail so we can better understand the problem.