Document Management Software is software which allows you to organize your enterprises documents. Critical features of Document Management include version control, revision control and management. This allows you almost instant access to the document you need instead of searching threw vast library's of physical or electronic files.

Document Management Software comes in two different forms, one being web based DMS, and the other being software based DMS. Companies like Hummingbird offer extensive document management software which is revolutionizing the industry. Also Companies like FileNet are providing excellent integrated document management (IDM) and Records Management Software aimed at supporting lifecycle management of records

There are very few free document management software packages, DCM Professional Edition 4.0 is one possibility worth researching. However if you would like a free solution you way want to consider a cms application instead.