Flip a Single Layer in Photoshop (Horizontal or Vertical)
Need to mirror a single element in your composition? Use Photoshop’s Transform options to flip only the selected layer horizontally or vertically. This keeps other layers and the canvas unchanged.

Step-by-step instructions
1
Select the layer you want to flip
In the Layers panel, click the layer to target it.
Ensure no multi-layer selections are active unless you want to flip them together.
2
Flip the layer
Go to Edit → Transform → Flip Horizontal to mirror left/right.
Or go to Edit → Transform → Flip Vertical to mirror top/bottom.
Repeat as needed; use Edit → Undo if you picked the wrong direction.