To change the paper size used for your forms

1. In the Sales Command Center, click Print Invoices to open the Forms Selection window for invoices. Choose the type of invoice you want to modify from the Form Layout list

or

In the Purchases Command Center, click Print Purchase Orders to open the Forms Selection window for purchases. Choose the type of purchase order you want to modify from the Form Layout list.

2. Select the form layout of the form you want to change from the Selected Form for Invoice (or Purchase) list, then click the Customize button to open the Customize window.
3. Choose Forms Info from the Form menu to open the Forms Information window.
4. In the Forms Information window, choose the type of paper used for this form. For example, if US Letter is selected, but your form is 8 x 8.5 inches, choose 8 x 8.5 in. from the Paper selection list. When you've made your changes, click OK.
5. In the Customize window, click the Save Form As button. The Save As window appears; enter a name and a brief description for the new layout and click OK. (If you selected a custom form in step 1, click Save Form to save your changes without creating a new form layout.)

When you print your forms, also be sure that the paper size in the Page Setup dialog box is correct for the document you're printing. Choose Page Setup from the File menu to display this dialog box