PdfDocumentAddElectronicInvoice Method

Embeds a Factur-X / ZUGFeRD electronic invoice in the PDF document: the invoice XML is attached under the file name the standard prescribes, with the relationship of its profile, and the Factur-X identification metadata is written in the XMP metadata. The document must be created as PDF/A-3 (PdfA3b, PdfA3u, PdfA3a or PdfUa1PdfA3a for an accessible invoice). A document carries one electronic invoice

public void AddElectronicInvoice(
	ElectronicInvoice invoice
)