I was looking for some options to tweak scaling and positioning of images printed with the CUPS “lp” command. This page <http://www.cups.org/documentation.php/doc-1.5/options.html> lists various keywords that can be used with the “-o” option, in particular “natural-scaling”, “ppi” and “position”. You’ll notice that section has a large banner at the top saying “Not Supported on Mac OS X”. Which is slightly ironic, given that CUPS is owned by Apple. Anyway, the description of those options has disappeared from versions of that page for CUPS 1.6 and later, e.g. <http://www.cups.org/documentation.php/doc-1.6/options.html>, <http://www.cups.org/documentation.php/doc-2.1/options.html>. This even though I have CUPS 2.1.2 on my system, and the “position” option, for example, does seem to do something.