Resize documents or print on a custom paper size with Mac
Mac OS X 10.5 and 10.6
Use one of these methods.
1.
On the File menu, click the Print option.
2.
Click the Page Setup button.
3.
Select the product, and then select the correct settings for the Paper Size
and Orientation options.
1.
On the File menu, click the Print option.
2.
Open the Paper Handling menu.
3.
In the Destination Paper Size area, click the Scale to fit paper size box,
and then select the size from the drop-down list.