@aurapup: but if you upscale; say a 500 X 500 picture to a 2000 X 2000 for example, wouldn't it just be one giant low rez and pixelated image? I've done upscaling in Photoshop before with small images. It ended badly.

@W0LFB3AT5: This entirely depends on the method of resampling used for upscaling. While they will not meet the original art quality, some methods are better than others and are used for different purposes.