Tried to set an offset distance of .0625", but it calculated the distance incorrently and placed them in closer than I specified. I emailed the company but got no reply. I'm using InDesign CS 3.01 under Mac OS X 10.3.3. Also seems to break drag and drop of PDFs into a document, although the same file can be placed without issues. Price is also kind of high for a single user. Should be more like $5-10 max. Cannot recommend this product at this time due to problems I've seen as soon as I've begun using it. Maybe there are workarounds. I'd also like to see the ability to assign crop mark color from registration as well. There are cases where I need them with black or a specific color only and not on all plates.