Hello, Here's the problem: An image in classic format (gif, bmp, ...). In this image, a red curve on white background. This curve has been drawned with antialiasing option. Now, added pixels for antialiasing are in progressive light red (and not transparent). Is there a tip to perfectly transform these pixels in semi-transparent pixels. I've tested this solution but it doesn't give not good results: .Select->by color:select white area .select->feather: about 2 pixels .edit/cut Regards. Eric.