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While Adobe Photoshop has a host of automation tools, one of the most versatile and powerful of them is called an action . In fact, some of the other automation commands, such as batches and droplets, derive their functionality from actions. An action is like a macro or script; however, while scripts have a reputation for being confusing and difficult, actions are very easy to create. If you know how to use Photoshop, you know most of what you need to create your own actions. For example, let's say that you have 100 digital photos that you'd like to post on the Internet.