Superpaper is described as 'advanced multi monitor wallpaper manager for Linux, Windows and Mac OS X operating systems' and is an app in the OS & Utilities category. There are four alternatives to Superpaper for Windows, Xfce and Linux. The best alternative is DisplayFusion, which is free. Other great apps like Superpaper are Dual Monitor Tools (Free, Open Source), Wallpaper Manager (Free, Open Source) and X-tile (Free, Open Source).
DisplayFusion will make your multi-monitor life much easier. With powerful features like Multi-Monitor Taskbars, TitleBar Buttons and fully customizable Functions, DisplayFusion will make managing your multiple monitors painless.
Dual Monitor Tools is a software package for Windows users with dual or multiple monitor setups. All the tools are open source and free, and each tools is independent so you only need to install or run what you want.
Features Applies multiscreen wallpapers over all monitors. Applies multiple singlescreen wallpapers (one for each monitor) and offers three different cycle modes. Allows automatic cycling of wallpapers in an given interval.