Paint.NET comes surprisingly close to Photoshop's feature set while keeping the interface simple and accessible to novice users. In addition, Paint.NET includes an undo history, the ability to open multiple files at once, and basic filters and adjustments like colour levels and curves.
The biggest of these features is layers, an innovation that Photoshop made so useful that it has become second nature to an entire generation of designers. Paint.NET attempts to bridge the gap between Microsoft Paint's simplicity and Photoshop's raw ability, offering features that, frankly, should have been in Paint years ago.
