Method of encoding stacks of printed material

摘要

A method of forming a coded image with the edges of a plurality of stacked pages is disclosed. The method includes defining a unique identification code for a plurality of defined areas on a sheet of paper, and for printing each identification code onto each area, the identification code being in contact with a boundary between each area. A method of cutting the sheet along each boundary to form blanks having a coded edge, and stacking a number of sheets to form a stack with an edge bearing a coded image formed from a number of coded edges is also disclosed.