ZUGFeRD / Factur-X — Frequently Asked Questions
Find answers to the most common questions about ZUGFeRD, Factur-X and our platform.
What is ZUGFeRD?
ZUGFeRD is a hybrid e-invoice format that embeds structured XML data in a PDF/A-3 file. It makes invoices both human-readable (PDF) and machine-readable (XML), ensuring automated processing and compliance with EN 16931.
Learn more about ZUGFeRDWhat is Factur-X?
Factur-X is the French implementation of the same hybrid PDF+XML approach as ZUGFeRD. It is aligned with EN 16931 and is the recommended format for electronic invoicing in France.
What is the difference between ZUGFeRD and Factur-X?
Technically they are very close: both embed EN 16931-compliant XML in a PDF/A-3 file. ZUGFeRD is the German standard; Factur-X is the French one. Profile names and some national extensions differ, but interoperability is high.
Which ZUGFeRD profiles are supported?
E-Rechnung Pro supports the BASIC, EN 16931 and EXTENDED profiles, so you can choose the right level of detail for your business partners.
What file formats can I upload?
You can upload PDF invoices for conversion, or work from templates and forms. The output is a ZUGFeRD / Factur-X PDF/A-3 with embedded XML, built to the EN 16931 model in the profile you choose — and you can check it before you send it.
How does the validation work?
Our platform checks structure, EN 16931 business rules and profile requirements. You get clear pass/fail results and details so you can fix issues before sending.
Is my data secure?
Your documents travel over an encrypted TLS connection and are stored on servers in Germany (Hetzner, Falkenstein). They are reachable only from your own account, and we do not sell them or pass them to third parties. How we handle personal data is set out in our Privacy Policy.
Can I convert any PDF to ZUGFeRD?
Most standard PDF invoices can be converted. Quality depends on the source document; you can review and adjust extracted data before generating the final file.
Do I need to install any software?
No. E-Rechnung Pro is 100% online. You only need a browser — no installation or plugins.
How does billing work?
Plans are based on monthly document volume. You can start with a free trial, then choose monthly or yearly billing. Upgrades apply immediately.
Can I cancel my subscription anytime?
Yes. You can cancel at any time from your account. You keep access until the end of the paid period.