Photoshop tips - Beginners' Corner: Creating a Mirror Image

This will be easy and painless. It works in ALL versions of Photoshop and Photoshop Elements:

1. Duplicate - Press Ctrl/J (Mac: Cmd/J) to "float" a copy of the layer you wish to mirror...

2. Select & Flip - Press Ctrl (Mac: Cmd) and Click on the layer thumbnail of the new layer you created.

3. Flip - Select Menu Edit > Transform > Flip Horizontal and your image will flip to mirror the original image.

4. Enlarge your Canvas - You now have to enlarge the file canvas to accommodate both pictures side-by-side.
Select Menu: Image > Canvas Size and then set the WIDTH to double the file size, then click the 'Map' below to position the newly added space in the right direction.

5. Finish the Creation - Now just use the Move tool (tap V) and move the images to mirror position. Touch up the edges, using the Smudge tool, Clone tool or any of the others, and that's all there is to it.