| 摘要 |
A method for securing a document, includes: a step of determining print conditions of the document; a step of determining physical characteristics of cells of at least one shape, according to the print conditions, such that the proportion of cells printed with a print error coming solely from unanticipated unknowns in printing is greater than a pre-defined first value and less than a pre-defined second value; a step of representing an item of information by varying the appearance of cells presenting the physical characteristics and a step of printing the shape utilizing the print conditions, the shape being designed to enable the detection of a copy modifying the appearance of a plurality of the cells. |
