Adobe Photoshop Lightroom is a photo editing and management computer program developed by Adobe Systems for Windows and OS X. Via a single user interface, it allows the viewing, management, and editing of a large number of digital images. Lightroom and Photoshop share many of the same photo editing capabilities but with very different strengths, namely Lightroom’s non-destructive behavior and Photoshop’s ability to layer and manipulate specific elements of an image.
Lightroom is not a file browser like Adobe Bridge, but rather an image management application database which helps in viewing, editing, and managing digital photos.