I think someone else can answer this much better. If you're resizing a picture with a high resolution to an image with a small dimension, the computer tries to keep the original image, but because of the dimensions, the resolution doesn't change. So if you have 100x100 image, and try to shrink it down to 10x10, in that 10x10 you only have 100 pixles, vs the 100x100 where you have a nice resolution of 10000 pixles. Not sure if that made any sense at all... in other words you can't just resize a picture because of resolution. Unless you resize to say a 1 inch by 1 inch picture, and in that one inch picture you have the same resolution as the original image did at say 10inch by 10inch... lol I even confused myself.