See this article to learn in greater detail about how to work with invoices.
Fine-tune your invoices with the following invoice preferences:
Control the content of your invoices by customizing invoice numbers, labels, and toggling the display of certain fields.
Draft Invoice Preferences
Customize the title displayed on draft invoices, and decide whether to include a watermark.
Projected Invoice Preferences
Customize the title displayed on projected invoices, decide whether to include a watermark, and add custom notes to projected invoices.
Invoice Layout Preferences
Customize the layout ant content of your invoices.