document image in other embodiments a generic version of the pristine object is passed back to the photocopier and the processor 20 attends to sizing rotating etc of the pristine picture 38 as necessary to match that of the original picture 31 in some embodiments the picture 31 in the paper document has been cropped the watermark can nonetheless be detected from the cropped image when the pristine picture 38 is received from the remote location it can be pattern matched to the picture 31 detected in the original document to determine the cropping boundaries if any and corresponding cropping of the pristine picture can be effected once the foregoing scaling rotation cropping etc adjustments if any have been made on the pristine picture 38 stored in buffer 24 the processed pristine picture is combined with the original document scan data in compositing memory 26 yielding a composite document image that includes the pristine picture data 38 in lieu of the scanned picture 31 the substitution of the pristine picture for the original picture data can be accomplished by various known image processing techniques including masking overwriting etc the composite document image is then passed to the reproduction engine 28 to produce a hard copy output.