I have not been impressed with the Gimp. My image modification needs are modest. Usually, all I need to do is resize or crop an image. Gimp insists upon saving images in .xcf format, which I have never heard of, and this .xcf format cannot be read by many other programs. That bizarre decision on the part of the developers prohibits use. I suspect that there is a way to teach Gimp how to use the universally accepted .jpeg format or there is a hidden option in Gimp that is not easily found, but one can find by googling "gimp jpeg." Whatever the case may be, I have zero motive to even bother learning Gimp's ways. If I ever have a heavy-duty image editing need, then I turn to Windows 7 and ACDSee, which is intuitive, fast and powerful enough for almost any need of the average user. In Linux, I have found that ImageMagick, a quirky, modest little program, works great for resizing .jpeg pictures and is very fast, too. I also strongly recommend Digikam, which is powerful and capable of handling digital cameras.