Whether you need to quickly crop a photo, add some text to an image, or just have fun doodling, Paintbrush has you covered. Instead, it aims to fill the need for a basic, streamlined, and Mac-native image editor. Paintbrush is not intended to replace Adobe Photoshop or other high-end image editors. The Layer palette is one important reason for that. Paint.NET may be the best photo editing software for Windows, but Pixelmator takes its position on Mac OS X. Microsoft Paint For Mac Os Free Downloadīest Layer-based Image Editor for Mac.