Create a Receipt Size for Printing from Safari/Chrome on Mac OS X

To create a custom page size for printing receipts from Chrome or Safari on Mac OS X:

1. Press the Command and P keys or choose File |Page Setup, or File | Print to open the Page Setup dialog box.

2. Open the drop-down list in the Paper Size box, and choose Manage Custom Sizes.

The Custom Page Sizes dialog box opens.

3. Select the plus sign button in the bottom left corner of the dialog box.
4. Double-click the default name Untitled, and type a new more descriptive name, such as No Margins, and click OK.
5. Press and to go to the Page Setup dialog box.
6. Click in the Paper Size box to open the drop-down list.
7. Select the custom paper size name, for example No Margins.

8. Select OK.