3.2. F2 IMPOSITION PARAMETERS panel

3.2. F2 IMPOSITION PARAMETERS panel

In this panel, you can select key imposition parameters, such as the type of imposition sheet, grid parameters, cell grid sizes, and other settings. If the cell grid size is not locked, the TrimBox sizes of the first page loaded in the file will override the default cell grid sizes and change all row and column widths and heights, unless the Allow sizes different from grid cell size option in the F3 COLUMN AND ROW SIZES panel is enabled. Changing the number of columns and rows (on the recto) will reset all previously set column widths and row heights to the default values specified in the F3 COLUMN AND ROW SIZES panel.

The size of the cell grid should be selected so that the amount of paper waste after printing and cutting out the pages is as small as possible.

In this panel, you can also select the type of sheet. The available options are:

• one-sided (abbreviation: OS);
• two-sided full, turned over by the side guide (abbreviation: TFSG);
• two-sided full, turned over by the front guide (abbreviation: TFFG);
• two-sided non-full, turned over on the other side by the side guide (abbreviation: TNSG);
• two-sided non-full, turned over on the other side by the front guide (abbreviation: TNFG).

There is one exception to the above rule: changing a sheet from one-sided to any two-sided full sheet.

Another element in the F2 IMPOSITION PARAMETERS panel allows you to set the rotation angle of PDF pages placed in the cell grid. If the page orientation matches the orientation of the cell grid (e.g., when the cell grid is vertical because its width is less than its height and the page placed in the cell grid is also vertical), the pages will be rotated by 0° or 180°. Pages with the opposite orientation will be rotated by 90° or 270°. Regardless of these settings, pages can always be rotated by any angle that is a multiple of 90°, regardless of the relationship between the page orientation and the orientation of the cell grid.

The last parameter is setting the bleed size. The bleed size specified in the panel refers to its maximum size and the bleed on the outer edges of the imposition. The bleed size between cells is determined by adjusting the spacing between columns and rows. If there is bleed on the PDF page, it will be trimmed to half of this distance. If the distance between columns and rows is greater than or equal to twice the bleed value, the bleed will be trimmed to the maximum specified value. The bleed on the outer edges of the imposition will also be trimmed to the maximum value.

Example Parameters: • bleed = 6 mm; • distance between columns = 4 mm; • distance between rows = 6 mm.