A1: | Layers let you move and edit different parts of an image as discrete objects. You can also hide individual layers as you work on other layers by clicking to remove the eye icons ( |
A2: | The new layer always appears immediately above the active layer. |
A3: | You can make artwork on one layer appear in front of artwork on another layer by dragging layers up or down the stacking order in the Layers palette, or by using the Layer > Arrange subcommandsBring to Front, Bring Forward, Send to Back, and Send Backward. However, you cannot change the layer position of a Background layer. |
A4: | You can link the layers by first selecting one of the layers in the Layers palette. Then you click the box to the left of the Layer name of the layer to which you want to link it. Once linked, both layers can be moved, rotated, and resized together. |
A5: | You can flatten the image, which merges all the layers onto a single background. It's a good idea to duplicate image files with layers intact before you flatten them, in case you have to make changes to a layer later. |