Merge layers in Photoshop

Merge specific layers together

1. Hold the Shift-key pressed and select all the layers you want to merge together
2. Make a right-click on one of the layers and choose “Merge Layers”

Merge all layers together

1. Make a right click on any layer
2. Choose “Merge visible”

Alternatively you can also press CTRL+A in the layer window. After all the layers are selected you can also make a right-click and merge them together.

Good luck!