System and method for visual document comparison using localized two-dimensional visual fingerprints

摘要

A method and system detects and highlights changes in documents (100,200) and displays those documents in a side-by-side aligned view. Aspects of a source document (100) and a revised document (200) are detected and compared. Similarities and/or differences between the source document and the revised document are identified and visual identifiers are introduced to maintain consistent and accurate alignment between content in the source document and content in the revised document. A merged single file (300) is output containing the aligned side-by-side view of the source document and the revised document, with all differences between the source document and the revised document visually identified.