OS X Mountain Lion: Manage custom paper sizes
If you want to print on paper that has an unusual size, such as an envelope or card, you may be able to choose the paper’s size from the Paper Size pop-up menu. To find the Paper Size pop-up menu, choose File > Page Setup. If you don’t see a Page Setup command, choose File > Print.
If you can’t find the size you need, you can also create your own custom paper size. Custom paper sizes aren’t available for some printers.
- Do one of the following:
Choose File > Page Setup. Choose Page Attributes from the Settings pop-up menu, and then choose Any Printer from the Format For pop-up menu.
Choosing Any Printer ensures that you can choose your custom size for any printer that supports it.
If Page Setup is not available, choose File > Print. If you see a Show Details button, click it to show all available options.
- Choose Manage Custom Sizes from the Paper Size pop-up menu, and then do any of the following:
Option Description Add a paper size: Click Add (+). Duplicate a paper size: Select a paper size in the list, and then click Duplicate. Change the name of a paper size: Double-click the name of the paper size, and type a new name. Set nonprintable margins for the highlighted size: Choose a printer from the pop-up menu to use its standard margins, or enter values for the Top, Bottom, Left, and Right margins. Set dimensions for the highlighted size: Enter values for Width and Height.