1. Select the Enable Signature Booklet check box to enable the feature.
2. From the Type list, select 2-up for printer spreads or 1-up for loose page proofs.
3. In the Document Folding Style list:
   • If the spine is at the left side of the finished document (all even pages will be to the left of the facing odd pages), select Book-fashion.  
   • If the spine is at the top of the finished document (even pages are above the facing odd pages), select Calendar-fashion.
4. In the Trim Offset box, type a value to specify the amount of the press sheet outside the page bleed to include on the output.
   This can be used to show crop and fold marks, spine marks, and so on.
5. In the Duplex Offsets boxes, type values that will adjust for the mechanical misalignment that occurs in a laser printer duplexing unit.