Flip Image Horizontally Photoshop. Go to image image rotation and select flip canvas vertical. Open the image you want to flip.

This will flip the whole canvas horizontally. Go to image image rotation and select flip canvas vertical. At the bottom of the menu are the options to flip horizontally or flip vertically choose the one you want to flip the image.
The canvas includes the background layer and all other layers.
Flip the image horizontally. Open the image you want to flip. The flipping option allows you to flip the image vertically or horizontally. You rotated the image instead of flipping it.