There are 3 'modes' that you will initially select from: Crop and Resize . Resize . and Stretch . depending on what you need to do. There are plenty of presets for your output size, which is absolutely wonderful. I found the Crop and Resize mode excellent for getting the best crop for output size, and there is even a helpful gridview option for the center preview pane, as well. Buy Alien Skin Blow Up 3 “ Blow Up keeps photos crystal clear during enlargement. Especially in large prints hung on a wall, the difference between Blow Up and Photoshop is astounding. Version 3 makes pictures even sharper withoutputer artifacts.” Microsoft Windows users need Windows Vista or later. Apple Macintosh users need Mac OS X 10.6 or later. An Intel Core 2 processor orpatible is required. A monitor with 1024x768 resolution or greater is required. Adobe Photoshop Lightroom 2 or later One other thing worth mentioning is that with the installation of Blow Up 3, you also get a free Photoshop panel installed, called Gallery Wrapper. which prepares the image edge for gallery-wrapped prints. Easy to use if you are looking to do that, and I thought it was a nice little bonus. Buy Alien Skin Blow Up 3 I am always amazed at the rapid and accurate help I receive from Alien Skin. The product is wonderful, and their help is unprecedented in my experience. About Alien Skin Software Alien Skin Software makes Photoshop plug-ins for photographers and graphic designers. We distill advanced math and cutting edge research into simple tools that render beautiful pictures. Our reputation for bug-free software and fast, friendly tech support has grown worldwide since 1993. For more information, visit our website at :www.alienskin . Blow Up, Alien Skin Software, and the Alien Skin Software logo are registered trademarks of Alien Skin Software, LLC. Adobe, Lightroom, and Photoshop are registered trademarks of Adobe Systems Incorporated. All other trademarks are the property of their respective owners. Installed as an Intel-only, 64-bit application, Blow Up can be used without having to rely on host programs such as Photoshop ( ), Lightroom ( ), or Photoshop Elements ( ), but its installed plug-ins can be used as an easy bridge from those programs as well. Where can I buy discount Alien Skin Blow Up 3?If you want to buy Alien Skin Blow Up 3 for a lowest price - just buy OEM version.