InvoiceXML 

Create, validate, embed, render and read ZUGFeRD and XRechnung e-invoices from C# and .NET. A thin, typed client for the InvoiceXML REST API: EN 16931 invoice model in, ZUGFeRD PDF/A-3 or XRechnung XML out,... More information

Create, validate, embed and read Factur-X e-invoices from C# and .NET. A thin, typed client for the InvoiceXML REST API: EN 16931 invoice model in, Factur-X PDF/A-3 out, validated against the official rule sets... More information