Tutorials
Beyond QWeb: generating your Odoo documents with Carbone
Odoo natively generates its documents (quotations, invoices, delivery notes, and so on) with QWeb, its own HTML/XML-based templating engine that outputs PDF. That works fine for standard use, but any real customization stays in developer territory: QWeb (native)CarboneOutput formatPDF only (Excel/Word require a third-party module)