Pixelmator, an app which has been familiar to Mac users since 2011, have released a version of their powerful photo editing software for iPad. Although the App Store is awash with photo editing and manipulation packages, Pixelmator's clean interface and collection of the most used features iPad users require, makes it a good substitute for desktop based software packages when on the move. Alongside allowing image enhancement, a "painting engine, precise colour correction, and live histograms" (allowing you to gauge real-time colour values as you edit), the app also takes step into providing "layers, non-destructive layer styles and a collection of professional-grade selection tools."
Taking advantage of iOS's 64-bit processor and a number of other device specific performance accelerators, the app is pleasantly responsive when handling high-resolution, high DPI photographs. The complex collection of features are intuitively presented to the user by way of large, tappable icons that prevent you from accidentally making mistakes when, for example, making a delicate selection. The layout tools are "pixel-accurate", meaning that editing can be done at the finest level of detail. Most usefully, files can be exported as PNGs, JPEGs, or layered Photoshop images.