Flatten Layers (Pro Only)

1. In the navigation pane, click the menu button in the top left corner of the Layers panel, and choose Flatten Layers.
2. A warning message pops up, telling you that the flattening operation cannot be cancelled or undone.
3. Then click OK.

Note: After the flattening operation, all layers will be consolidated, while the layers that are originally not visible will be removed. After you flatten the layers, you cannot undo the operation.