This just started a couple of days ago. Any time I print anything from Acrobat XI (11.0.0), the print is scaled to fit the size of the stock I'm printing on. So, when I print something letter size with crop marks on a 12x18 press sheet, the print is blown up to fit into the printable area of the press sheet instead of the actual size it is supposed to be.
Changing the settings in the print dialog box to "Actual size" or "Custom Scale: 100%" has no effect on it. I've searched through the printer settings and there is nothing there that would cause this. Printing from any other application (such as Preview on the Mac) works like it is supposed to (and I would use that option as a temporary fix if Preview actually gave me control over color).
I've uninstalled and reinstalled Acrobat XI and this did not solve the problem. Any suggestions?