1. A method of retrieving a scanned document stored in a repository, comprising: displaying in a user interface a preview of a plurality of index images and each name of the document from which each index image originates, wherein each index image represents image regions in multiple documents or between pages of a single document, and each index image occurs at least once in each of its corresponding documents; displaying along with each of the index images and the document names, a document type, and a user associated with each of the documents; and responsive to user selection of at least one index image displayed in the user interface, retrieving all documents associated with the selected index image.