I have an Epson and a Canon inkjet printer connected to my Macs, and I am trying to find profiles for different inkjet papers that I can add to the printers so that they will print correctly on the papers. The available paper types listed in the printing options are very limited and don't include options even for the range of papers sold by the printer manufacturer. I am not familiar with this process. Are there downloadable profiles for printers working on Mac OSX? Can you load paper profiles for different brands of paper? Does the process involve something more? I have read about having to do calibrations and even having to buy profiles from commercial sources, but I am not clear how all this works.