Before everything else, your choice should contain lossy and compressed image data but still look quality on the page. Premium JPEG graphics are easy to resize and highly detailed, making the image look professional even when compressed. Besides, you might also want your illustrations to be easy-to-customize with editable sizes, colors, and other features. Look for graphics with ready-made color schemes if you're going to change the design in a few clicks. We also recommend you select products that allow full-fledged customization for a unique look. Plus, ensure the JPG illustrations you buy are ready-to-print and come as separate files with and without background.