When you select one or more thumbnail images in the Browser, those images are displayed in the Viewer. You can use the Viewer to examine an image at its full size or compare multiple images side by side.

To learn more about using the Viewer, see Displaying Images in the Viewer.

Figure. Viewer with the tool strip below it.

You can apply adjustments, keywords, and metadata to an image in the Viewer. You use the display controls in the tool strip to set how images are displayed in the Viewer. For example, you use the display controls to display images at full resolution, display metadata with images, display the masters that versions are based on, display the primary image selection only, and display preview images (optimized JPEG images) only.

For information about individual display controls, see Tool Strip.