hi Benoit, I think there was a missunderstanding. What I mean: the instruction: image2 = image1.Rotate(45) rotating the image on the middle. But the middlepoint of image2 is not the middlepoint of image1. that is my problem. at 90° it was rigth. kind regards Jürgen -- viele Grüße e vy 73 wünscht Jürgen