> When I load a jpeg image (e.g. to turn it 90drg) which compression parameters > got > it saved with using save (Ctrl-S). I assume the original once are not recorded > in the image, > so how could I be shure that the quality is perserved. The quality can not be preserved since JPEG is a lossy format and will always degenerate the image on each subsequent save. If I remember correctly, GIMP does indeed store the compression parameters with your image. If you use the "Save As" function you have the possibility to check and change the parameters. Salut, Sven
