Convert UN/CEFACT CII to Factur-X (PDF/A-3)
France’s phased B2B e-invoicing mandate accepts Factur-X as one of its three permitted formats.
Deadline: September 2026 (large/mid-size companies begin receiving); September 2027 (all companies must issue).
Since Factur-X embeds CII XML natively, converting from CII is the most direct Factur-X path — no syntax translation, just PDF/A-3 packaging (output intent, XMP metadata, the embedded-file relationship) around your existing invoice data.
InvoiceHub still re-validates the embedded XML against the official EN 16931 CII Schematron before returning the PDF — a CII document that was never checked doesn’t become trustworthy just because it’s now wrapped in a PDF.
Try it
curl -X POST https://api.invoicehub.dev/api/v1/convert \
-H "Authorization: Bearer ih_live_xxx" \
-H "Content-Type: application/json" \
-d '{"from": "UN_CEFACT_CII", "to": "Factur-X", "document": "<source document>"}'Real Factur-X output
Excerpt from actual, verified conversion output — not a mocked example.
%PDF-1.7
... (PDF/A-3 container; the source CII embedded as-is, re-validated) ...Common validation errors
- BR-CO-25 — A payable amount below zero without a corresponding due date / payment terms — check the source CII’s settlement section.
- BR-02 — Missing invoice number on the source CII document.
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Free tier includes unlimited validation and UBL 2.1 generation. This conversion requires the Pro plan or above.