When scaling up or down artwork, there are 2 ways to size. Proportionally, this maintains aspect ratio and disproportionately, this does not maintain aspect ratio.
When maintaining an aspect ratio, the image keeps the same ratio of height / width and doesn’t add any distortion to the art.
When sizing disproportionally, the art is sized based on the height and width . Large scaling changes can cause unwanted stretching of images. Our recommendation is to limit sizing of pictures, and logos using this method. Disproportional resizing also called a non-maintained aspect ratio is least noticeable with text.