How Do I Do That in Photoshop?

Make My Adjustments Un-Doable Forever?

Instead of applying an adjustment directly to your image (by going under the Image menu, under Adjustments, and choosing the adjustments there, like Curves, or Color Lookup, or Hue/Saturation, etc.), choose any one of these adjustments from the Create New Adjustment Layer icon’s pop-up menu at the bottom of the Layers panel (it’s the fourth icon from the left, and it looks like a circle that’s half white/half black). This adds the adjustment as its own separate layer above your current image layer, which you ...