Sorry if this has been asked and answered already.
I only use illustrator for video work. Therefore I almost never print anything out.
I am creating some promotional materials for my production company that measures 5in. x 4-7/8in. when final cropping is done. I need to know how to fit two instances of the same artwork on a single page when printed including crop marks for each instance. This way I can save on my printing costs (in house) by using half the paper.
I know that I can do this in PS with an automated task, but I want to be able to keep the crop marks for precision cutting.
Not sure if this'll help, but, could you set your artboard (File/Document Setup) to the size of both of your images. Than, set the crop marks (Object/Crop Area/Make). Than add a stroke, with the Pen Tool, underneath your images along the cut line?
If these are large images, you might need to set up for printing on tiled pages - an additional discussion...