Print or download PDF invoices in just a few clicks! After installing the extension, you have to enter your details: 1. Click on the GFC Invoice icon 2. Select Options 3. Enter required details 4. Click on the Save button Using GFC Invoice: 1. Navigate to My Orders page on one of the supported websites. 2. Click on GFC Invoice button 3. Click on Print Invoice. Done! 30 supported websites: Alibaba AliExpress Banggood DHGate GearBest + 25 more!