1. A computer program product for facilitating accurate review of a document, the computer program product being encoded on one or more machine-readable storage media and comprising: instruction for manipulating by a computer a scanned image of the document, instruction for indicating to a reader portions of the document which have been already reviewed in a previous or master document, and instruction for manipulating the image of the document while preserving its fidelity, wherein said instruction for manipulating the image includes instruction for highlighting or de-emphasizing portions of the image such that a colored or textured background is disposed behind the image in three-dimensional space.