Adjusting curves with the Curves basically is like creating your own filters. You can adjust the curves for RBG, CMYK, and CIE Lab. This gives you a lot of editing power all by itself and can affect everything in an image including color, saturation, brightness, contrast and much more.

Within Filters, you'll find 13 adjustments such as Noise Reduction, Sharpen, Blur, Exposure, Simulated HDRI, Hue/Saturation, and more. All of these adjustments have sliders you can tweak for just the right look. There are also 15 Filters including Dreamy, Watercolor, Sepia, Black and white, Neon, Television and more. The filters are all preset with no adjustment options and while many of these produce good results, a few are not done well at all. All the filters and adjustments can be layered over each other for endless possibilities.

Photoforge supports unlimited undo and redo so you never have to worry about making mistakes. Even if you get interrupted by a phone call or a crash, the next time you start up the app, Photoforge will ask if you want to continue where you left off, with a complete cache of all actions so you can still undo and redo.

All of this editing power is contained in an elegant and intuitive interface that makes navigating the myriad of options very simple. When you tap the screen, PhotoForge's interface goes away, leaving you with a full screen view of the canvas. If you go three seconds without touching the screen, the interface reappears. GhostBird Software has done a wonderful job putting everything at your fingertips in an unobtrusive way.

When you're finished editing or creating, you can save to four different output sizes--640x480, 800x600, 1,024x768, and 1,600x1,200.