If the Aspect Ratio, i.e. height:width does not match your desired Aspect Ratio, then a Crop, plus probably an Image Size adjustment, will be required so as to not distort the Image.
Good luck, and hope that helps,
Jerry Rupany wrote:
I have to resize photos to 800x384 for my Ford Sync wallpaper. How do I do it and keep the picture from being distorted?
800x384 is a 25:12 landscape aspect ratio set the crop or rectangle to that aspect ratio select the composition you want crop it then use Image Size to resample it to 800x constrained.