Layers

Layers introduce a considerable degree of flexibility into the way in which you can work with images. Layers let you keep various image elements separate so that you can make changes without deleting or changing the underlying pixels.

Each additional layer you create increases the file size of the image. You can selectively merge layers into each other to help manage and consolidate layers as you work. When you have finished editing your image, you can flatten the image to merge all layers into a single Background layer. You will need to do this to use your image in QuarkXPress or Adobe InDesign. You should note that you can only save images with layers in Photoshop and TIFF file formats.

Covers
Working with Layers
Merging and Flattening Layers
Moving Layers Between Images
Linking Layers
Adjustment Layers
Locking Layers
Layer Sets
Layer Styles
Managing Layer Styles
Transforming Layers
New Layer Commands