4-up Page Impositions

This app generates 4-up page imposition diagrams without any page count limitations. Signatures can be imposed according the four major imposition methods: 1. Sheetwise for perfect or thread-sewn binding. 2. Sheetwise for saddle-stitching. 3. Work & Turn for perfect or thread-sewn binding. 4. Work & Turn for saddle-stitching. Additionally, the app provides information for the folding machine operator as to which folding units and buckle plates have to be activated for a given signature imposition.