PaperTracer is described as 'automates workflows by integrating paper and digital documents into a centralized database for your contract or document management' and is an app in the Office & Productivity category. There are three alternatives to PaperTracer for a variety of platforms, including Windows, Android, Android Tablet, iPad and iPhone. The best alternative is Zoho Docs. It's not free, so if you're looking for a free alternative, you could try OrfeoGPL.
Globodox is a scalable, Windows-based document management software that enables medium or large organizations to securely manage and share documents. Extremely easy to deploy and use, Globodox is used by customers in over 50 countries.
OrfeoGPL is a free Software Document management system. It is GPL licensed and uses open standards. OrfeoGPL incorporates the idea of "Fractalize processes" to facilitate the management of any company documents.