Adjustable Font Size and Page Breaks for Multi-Page Invoices

Let users control font size and page breaks on invoices that span multiple pages, so longer invoices (many line items, detailed descriptions) format properly across page 1, page 2, etc. rather than breaking awkwardly or leaving excess whitespace.

Should include reducing font size to fit more content per page, and control over where a page break happens so content isn't split mid-item.