Digital Preservation is the management and maintenance of digital objects so they can be accessed and used by future users. It is important to start thinking about digital preservation early in the life cycle of a digital object because while traditional print objects may last relatively unharmed for decades untouched. Digital Preservation is the active management of digital content over time to ensure ongoing access. It is important not only for personal data management but also large repositories that manage many objects.The goal of digital preservation is the accurate rendering of authenticated content over time.