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What is an adjustment layer?

 An adjustment layer applies color and tonal adjustments to your image without permanently changing pixel values.

• Nondestructive edits. You can try different settings and re‑edit the adjustment layer at any time. You can also reduce the effect of the adjustment by lowering the opacity of the layer.

• Selective editing. Paint on the adjustment layer’s image mask to apply an adjustment to part of an image. Later you can control which parts of the image are adjusted by re-editing the layer mask. You can vary the adjustment by painting on the mask with different tones of gray.

• Ability to apply adjustments to multiple images. Copy and paste adjustment layers between images to apply the same color and tonal adjustments.

 

Examples

 

• For example, rather than making a Levels or Curves adjustment directly to your image, you can create a Levels or Curves adjustment layer.

 

 

 

Original (left); adjustment layer applied to barn only (center), which brings out detail in the barn; and adjustment layer applied to entire image (right), which lightens the entire image and pixelates the clouds