What is Documentbox and why use it? Documentbox is an online platform that helps you manage all your important interim documents online, in one central place. You can: Sign your contracts with your e-ID or with a password you've chosen View your pay slips at any time and from anywhere Rest assured that you won't lose important documents ever again No need to print your documents to sign them, scan them and send them back to your interim agency. Everything happens online to make your life easier , no matter if you're on a computer or on your phone.