How to Flip Pictures in Photoshop (Fast Mirror Method)
In this tutorial, you’ll mirror an image by setting a mirror point with the Crop tool, flipping a duplicated layer with Free Transform, and revealing the entire canvas. Duplicating the document protects your original while you work. The process is fast, simple, and version-agnostic.

Step-by-step instructions
Duplicate the document to protect the original
Go to Image → Duplicate.
Name the copy “Mirror”, then click OK.
Close the original tab (click the x) and continue working in “Mirror”.
Set the crop and mirror line
Select the Crop Tool.
In the Options bar, set Aspect Ratio to Ratio.
Drag the side handle to the exact mirror point (e.g., right side to a hairline).
Optionally trim empty space on the opposite side by dragging that handle inward.
Check Delete Cropped Pixels, then click the checkmark to commit.
Duplicate the Background layer
In the Layers panel, drag the Background layer onto the Create New Layer icon to duplicate it.
Select the duplicate layer (above Background).
Flip the duplicate around a reference point
Go to Edit → Free Transform.
In the Options bar, enable Toggle Reference Point (target icon).
Drag the reference point to the side handle on the mirror line (e.g., the right-side handle).
Right-click (Win) or Control-click (Mac) inside the transform box and choose Flip Horizontal.
Click the checkmark in the Options bar to commit the transform.
Clear tool overlays if needed
If a crop border is still visible, switch to another tool (e.g., Rectangular Marquee Tool) to dismiss it.
Ensure the flipped half sits just off-canvas in the pasteboard area.
Reveal the full mirrored canvas
Go to Image → Reveal All.
View the complete mirror image and save your file.