Traditional photo editing is ‘destructive’. That means every adjustment you make permanently changes the pixels in the photo and there’s no way back unless you’ve saved a copy of the original and you’re willing to start again. ‘Non-destructive’ editing is fully reversible. You can go back and undo or redo all of your editing work at any point in the future. Naturally, there’s a catch
A Snapshot is a record of the current image state while you’re editing it. You can create a Snapshot in Photoshop or Lightroom when you reach a point that you think you might want to return to during editing. You can save a number of Snapshots to quickly compare different editing steps.
If you’ve used Photoshop and Elements, you’ll probably have noticed the History palette. This keeps track of everything you’ve done since you opened the image, so if something goes wrong you can backtrack to an earlier state. Photoshop goes one better than Elements by adding a Snapshot feature, where you can separately record specific image […]