Adobe Photoshop Lightroom 3 Software for Mac & Windows (Upgrade)

The Photoshop Lightroom 3 Software from Adobe is a complete photo management and editing suite for Mac OS X and Windows. Perfect for enthusiasts and professionals alike, Lightroom takes a nondestructive approach to photo editing. When editing your photos, the original files are left unmolested. All of your adjustments and edits are stored in a database and applied to an image on the fly, so that you'll always be able to go back to the original image. This lets you perform as many post-processing adjustments on a photo as you'd like, without making permanent changes to the original image.