The following applies to Mac OS X 10.5. Mac OS X Print lets you create a preset which can become your default print format, or specify duplex on a per-file basis.
Make sure the printer you are using is set up for duplex (two-sided) printing. Also, some applications (such as InDesign), and some file formats may not be compatible with duplex printing.
- Open the file or web page you wish to print.
- Select File > Print, or do Command-P
- In the print dialog box, click the drop-down menu which gives the name of the application, or says Copies & Pages, and select Layout.
- Click the Two-Sided drop down menu and select the appropriate binding. Long-edge binding prints with the orientation on the vertical edge; Short-edge binding prints with the orientation along the horizontal edge.
- Click the Presets drop-down menu and select Save As...
- Enter a name for your duplex preset.
- Click OK.
Your duplex preset will be the one selected each time you open the print dialog box, unless you select another preset.
If you do not create a duplex preset, you can print the open file or web page by selecting Layout from the drop-down menu in the print dialog box, and then selecting a binding option in the Two-Sided drop-down menu.