How to Convert Voucher in Pre-Printed Setup?

Step 1) Go to Master > Click on Voucher format Selection.
Step 2) After that Select Sales Voucher type
Step 3) Then after selecting Voucher from the list.
Step 4) And click on Setup button show in right side below
Step 5) Then after show checkbox Pre Printed option and change the Top and Bottom Margin as per requirement.
Step 6) Then Press Save Button or Press F2