4x5 Instagram Posts Uploading With White Bars

When you upload an Instagram post, if the image is taller than 4x5, Onlypult will post the image with white bars on the side and not auto crop the image. This causes a lot of accidental posts with white bars. Could we potentially have Onlypult auto crop the tall image to 4x5, then you can move the crop up or down to choose the section of your "too tall" image to the best position?