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Lesson 5. Layer Basics > Flattening and saving files

Flattening and saving files

When you have edited all the layers in your image, you can make a copy of the file with the layers flattened. Flattening a file’s layers merges them into a single background, greatly reducing the file size. However, you shouldn’t flatten an image until you are certain you’re satisfied with all your design decisions. In most cases, you should retain a copy of the file with its layers intact, in case you need to edit a layer later.

To appreciate what flattening does, notice the two numbers for the file size in the Info bar at the bottom of the application window (Windows) or image window (Mac OS).


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