A free online service provider dropbox lets you take your multimedia files anywhere you are. After downloading this dropbox, when you save a file it gets automatically saved in your computer or android device or in dropbox website. Dropbox lets you safely and securely save your photos, videos, docs and email attachements with a backup always in its site. You can easily edit you docs from the dropbox with its new PDF Viewer. Dropbox customers are offered a free account with a set storage size and paid subscriptions for accounts with more capacity.