Reply To: adding spine marks

With CS5 you can use multiple pages for a single spread, and those page sizes can be mixed. So you'd set up 3 pages: back cover, spine, and front cover, in one spread. When you export this to PDF with “spreads” enabled, the crop marks appear for the spine as wel as the covers.

OR with any version you can do it with your method (faking it in as one page). To create the fold/crop marks, use the Line tool w/a .5 pt weight and manually draw these in where you want them. Drag them from somewhere inside the bleed allowance — close to the trim edge — out into the pasteboard a bit. Include a bleed measure (Export PDF > Marks and Bleeds) even if you don't have any artwork bleeding, otherwise the manual crop marks won't show in the PDF.

I do this alot to show folds (I use a dashed stroke for my line).

AM