If you're having trouble with formatting and resizing images, you should try some test photos and messing around with them for a bit because your "After" image has the dimensions 800x1200, which is going to make the original image super stretched. Your images shouldn't be changing the scale unless you are manually doing it or have incorrect settings when you export. If you are scaling down an image, make sure to keep the image ratio the same if you don't have a dialogue box for it in your program.