About PDF Xpansion SDK - E-Invoicing (Receipt)

Process incoming electronic invoices in your application.

PDF Xpansion SDK - E-Invoicing (Receipt) provides functionality to process incoming electronic invoices in the formats FACTUR-X, XRechnung and ZUGFeRD in your application. Enable users of your application to process incoming invoices quickly and efficiently. The component can be implemented into Windows UWP apps and desktop programs developed for the Business-to-Business, Business-to-Government and Business-to-Consumer sectors. PDF Xpansion SDK - E-Invoicing removes the need for your users to type in the data of received invoices manually or scan them via OCR. Instead, they can load all data directly from structured files into their accounting programs or billing systems.

Benefits and necessity of electronic invoices
Electronic invoices are an increasingly common way to bill products and services. Compared to the classic paper invoice, you save time (e. g. for creation, transport and processing) and costs, as well as natural resources (paper).

Moreover, since November 27, 2020, the German eInvoicing format XRechnung has become obligatory if a company wants to send an invoice (amount of EUR 1,000 and higher) to public authorities at federal level and in some federal states (for example Bremen since November 2020 and Baden-Wuerttemberg starting January 1, 2022) in Germany.

XRechnung is a German standard, but it transforms the European standard for electronic invoicing EN 16931-1 into national law and thereby implements Directive 2014/55/EU of the European Parliament and the Council.

What is required for efficient electronic invoice processing, are generally recognized, uniform standards that are easy to apply in practice. This is especially true in the general case that buyer and seller do not use the same invoicing and accounting software. The PDF Xpansion SDK product offers such standards and corresponding functionality.

The product supports the electronic invoicing specifications FACTUR-X, ZUGFeRD (all officially published standards, currently 1.0 to 2.1.1) and XRechnung (all officially published standards, including 2.1.1). All of them are compliant with the standard EN 16931-1. While XRechnung only needs a structured XML file that can be read/loaded by appropriate accounting programs or billing systems directly, ZUGFeRD and FACTUR-X consist of a PDF/A3-file that is the visual representation of the invoice (just like a “simple” PDF file, for example based on a Microsoft Word document) plus a structured XML file with the invoice content. This XML file can be read/loaded by appropriate accounting programs or billing systems as well.

Feature sets of PDF Xpansion SDK - E-Invoicing (Invoice Receipt)
The product is made to process incoming electronic invoices that have the specifications FACTUR-X, ZUGFeRD or XRechnung. It offers the following:

  • Extract XML invoice, including validation of embedding.
  • Read invoice data including validation of XML structure.
  • Support of all profiles currently possible according to the mentioned eInvoicing specifications, including the "Extended" profile.

Example scenario for ZUGFeRD invoice processing

  • Open an existing PDF/A-3 file (= visual representation of the invoice).
  • Extract the embedded XML file for reading/opening in and by the accounting software.
  • Validate the embedding with reference to the relevant specification.
  • Validate the XML structure with reference to the relevant specification.