ExtremeTechFeature: We take the world's best image-editing program and make it better—with these free plug-ins that let you spruce up your images like the professionals. Whether you're talking about a browser or an advanced 3D graphics modeler, plug-ins are a way to get more punch out of your application. And when it comes to upgrading a program's usability, Photoshop(Opens in a new window) boasts one
