Making adjustments: The basics
Step 1: On the left side of the editor window, click on an item in the master filter list to activate a filter:
Step 2: Make the desired adjustments. Here are a few tips for using the slider controls that populate most filters:
Step 3: Use the buttons on the bottom of the filter panel to apply or undo your changes, or to see a before-and-after comparison:
NOTE: When a filter is active, the thumbstrips, menu bar, and other functions are temporarily disabled until you exit the filter. However, you can still zoom, scroll, and pan in the image viewport.
See other tutorials and the integrated Help for details about using specific filters.