Hi, I'm wondering how do you print grayscale or black and white when printing PDF files in Preview? (Im running Snow leopard) Ive been racking my brains! Also I use an HP C4780 printer
File>Print In the window there will be a drop-down bar that says "Preview". Click on it, and from the list of options choose "Paper Type/ Quality." Several drop-down bars will appear, click on the one that is next to "Color:" From the list of options, choose "Grayscale." Click "Print" at the bottom of the window. Hope this helps.