Document templates
Logo, primary colour, font, sender and bank details — a consistent document look.
lumen.tm · E-invoicing
E-invoicing without the extra step
lumen.tm automatically turns every outgoing invoice into a hybrid ZUGFeRD e-invoice — readable for people, machine-readable for systems. No extra tool, no manual converter.
ZUGFeRD / Factur-X
One document, two worlds
Every invoice is created as a PDF/A-3b with an embedded factur-x.xml per EN 16931 (COMFORT profile). Your client still receives a perfectly normal, readable PDF invoice — while invoice number, amounts, tax rate, payment terms and IBAN can be processed automatically.
- PDF/A-3b with embedded factur-x.xml (EN 16931, COMFORT profile)
- Applies everywhere: month-end closing, download, preview and email dispatch
- Processable on the recipient side without manual entry
- Matches the German B2B e-invoicing mandate
Fail-open principle
Never a broken invoice
Embedding the e-invoice must never block invoice creation. If mandatory data is missing or a case cannot be represented, lumen.tm delivers the unchanged, readable PDF — instead of an invalid e-invoice. The limits are deliberately documented rather than silently swallowed.
- Embedding never blocks invoice creation
- Missing mandatory data: a clean PDF instead of invalid XML
- Covers the standard tax category with a rate above 0 %
- Special cases such as reverse charge deliberately fall back to the readable PDF
Documents
Templates, numbering, dispatch
Everything around the invoice is as well-regulated as the invoice itself — centrally maintained, consistently branded.
Number range & tax rate
Sequential invoice numbers and a centrally maintained tax rate.
Payment terms & discount
Payment terms per template, early-payment discount as an informational note.
Excel timesheet
Client-specific proof of work as XLSX — in addition to the activity report.
Single & bulk dispatch
Send reports and invoices per contract — individually or in bulk, also on schedule.
Dispatch log
Every dispatch documented: recipient, time, format — including internal CC.
Next step
See your invoice as an e-invoice
In the demo we generate a sample invoice with your master data — as a PDF/A-3b with embedded EN 16931 XML, ready to validate.