What is Adobe InDesign, and what can it do for you? In its more than a decade in existence, InDesign has become the most powerful publishing application, one that lets you work the way you want to work. You can use InDesign as a free-form but manual approach to layout, or as a structured but easily revised approach. The fact that you can choose which way to work is important for both novice and experienced users because there is no single, correct way to lay out pages. Sometimes (for example, if your project is a one-time publication, such as an ad), creating a layout from scratch — almost.