Opendias is described as 'The openDias project is an Open Source offering, to bring a professional document scanning and storage utility for the home user. OpenDias (Document Imaging Archive System) provides document storage and a document work-flow application to the home or small business user' and is a document manager in the office & productivity category. There are three alternatives to Opendias for Windows, Linux and Mac. The best Opendias alternative is NAPS2, which is both free and Open Source. Other great apps like Opendias are Kofax PaperPort and GpScanner.