Hi. There is a scriptSergeyAnosov - MakeCropMarks.jsx. You canreadabout ithere - https://sites.google.com/site/dtpscripting/indesign-scripts/makecropma rks
Yetthere is a script CropMaker - http://youtu.be/5xZBZdH97r0. Demo of the script - http://youtu.be/N3eOefyNRts.