Patent ID: 7333246

Claim:
A computer-implemented method for signature-by-signature editing of print data, the method being performed by a computer executing a computer program having a data structure stored on a tangible computer readable medium, comprising the steps of: editing the print data for printing on a web-shaped recording medium in a logical page sequence corresponding to at least one signature, said at least one signature forming a section of a printed product and including a plurality of pages; defining at least one parameter of said recording medium on which the print data are printed and that is relevant for a position of a print image on the recording medium folded in signatures; implementing a position correction of the respective print image on the pages before printing dependent on said at least one parameter; and computationally simulating folds of said recording medium needed for producing said at least one signature with assistance of the computer program so that the print images of successive pages of the folded signature lie exactly registered above one another, the folds ensue in two directions perpendicular to one another, and said position correction ensues in the two directions perpendicular to one another, the print data being provided on said recording medium, said step of computationally simulating performing simulating of the folds of the signature for said position correction; and calculating correction values for the print image of a page from an influence of each fold on a print image of at least one page; said simulating step simulating the folds for said position correction page-by-page with ascending or descending page number, and forming pairs of successive page numbers that due to the signatures at least one of: come to lie on one another as a result of a fold, and between which a fold is provided due to the signature.