Document scanning is the process of scanning paper documents, digitized, then stored on CD, DVD, or other magnetic storage. This scanning can be black and white and coloured.
There are various companies that provide Document scanning services. There are document scanning software also. They are easy to install and use that you can rapidly deploy it in your organization, without costly on-site assistance.
Some allows system administrators to create and modify index fields and to establish which users can perform specific functions within the system, such as scanning, indexing, reporting and querying.
Some even supports versioning of documents, which is important to users that have documents that can change over time. Each unique version is stored in the database for easy retrieval, display, printing, or further revision.