Photoshop actions save time by automatically performing repetitive tasks for you. They are especially useful for batch processing when you need to apply the same steps to a set of images. For example, you can record a resize action and then use the batch automate command to resize multiple images at once.

To record an action, you will need to use the Actions palette. If you have never created actions before, it is a good idea to save all your custom actions in a set. In this example, we will create an action to resize an image to 600 X 800 pixels:

Open a document in Photoshop and select Window > Actions to display the Actions palette.

Select the menu icon in the top right corner of the Actions palette, then select New Set.