 For offset printing, Anoto developed an ink color called "Anoto substitute black", a non-carbon-based black ink that is invisible in the IR region, allowing the user to include human-readable black marks with the dot pattern without interference.While some of Anoto's licensees have targeted the consumer sector, with, for example, learning toys, most licensees sell their products to providers who put together customized vertical market systems.Anoto also sells a software development kit (SDK), numerous software applications, the Anoto Forms Solution (AFS).