1. A method of indexing a displayable digital document, comprising the steps of: providing a displayable digital document; displaying said document with a displayable digital document viewer and selecting a field for indexing using a pointing device; recording offsets and a bounding rectangle of said selected field; comparing said bounding rectangle with other bounding rectangles in said displayable digital document; and recording in a relational database, a page number and offsets of said other bounding rectangles which compare.