1. A document system comprising: a web server computer adapted to receive a document collection in a first format, the document collection including a plurality of documents in the first format, each document including an indication of a corresponding classification code; a database server computer coupled to the web server computer and including a document store adapted to store the documents; and wherein the web server computer is adapted to transform each document by substituting the classification code corresponding to that document with a keyword associated with the corresponding classification code, wherein the web server computer is adapted to convert each document, including its keyword, from the first format into a second format different from the first format, wherein the web server computer is adapted to transmit each converted document to the database server computer and the database server computer is adapted to store the converted document in the document store, and wherein the web server computer is adapted to provide converted documents corresponding to a request received from another system, different from the document system.