Drop an invoice in and get a readable pre-check in seconds: plain PDF or Factur-X, profile, XML, VAT and totals.
Factur-X pre-check
PDF, embedded XML and business data.
Drop your invoice here
PDF only · 25 MB maximum
Privacy
The PDF and its XML are analysed in your browser. No file, name, amount, customer or IBAN is ever transmitted or stored.
This pre-check assesses the file itself. It replaces neither delivery through an accredited platform nor tax or accounting advice.
File conformance, readiness for the French mandate and the checks that were not run are presented separately, then every value found is shown raw.
The report will appear here
Drop a PDF above to start the pre-check.
Reading the PDF…
Need to produce this result automatically?
I can build Factur-X generation and validation straight into your business software.
The XML is there, but the pre-check found missing or inconsistent data.
No Factur-X XML was found. The document is still readable by a human, but a platform cannot use its invoice data.
This file cannot be analysed
Choose a readable PDF of 25 MB or less.
An invoice can be technically well-formed and still go to the wrong recipient, outside the right channel, or carry false commercial information. The tool must not conflate those things.
Checked by the tool
Not promised
No opaque score. The Factur-X 1.09 XSD schema is bundled from the official FNFE France_RFE 1.4.0.02 artefacts, and every check produces a readable diagnosis.
01
The checks that ran and the ones still to do are kept separate in the report.
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Every anomaly names the missing value or the inconsistent calculation.
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SXN Labs already maintains an open source toolchain for generating and validating electronic invoices.
A Factur-X file is more than a PDF that opens correctly. It combines a human-readable document with structured data meant for business software and accredited platforms.
References verified on 24 July 2026 · French standard · Factur-X 1.09
A plain PDF carries a visual representation. Factur-X adds a CII XML embedded in a PDF/A-3 container. That XML carries the amounts, VAT, parties, lines and payment details in a machine-readable form.
You need to check the PDF container, the presence of the XML, the declared profile, the XSD schema, the EN 16931 rules, the code lists and the applicable French rules. Total and VAT consistency must never be inferred from the visual rendering alone.
No. Technical conformance of the file proves neither the commercial truthfulness of the invoice nor its delivery. Within the scope of the French reform, it still has to go through the accredited platform for that channel.
No. An ordinary PDF sent by email is not a structured electronic invoice under the French mandate. Factur-X adds XML data that systems can process.
It means the file clears the technical checks that were actually run and displayed. It is neither a tax certification nor a guarantee of acceptance by the recipient.
Declaring PDF/A-3 in the metadata is not enough to prove full conformance. Until a robust PDF/A engine is bundled, that check stays explicitly marked as not run.
The pre-check recognises MINIMUM, BASIC WL, BASIC, EN 16931, EXTENDED and EXTENDED-CTC-FR. The official XSD runs for BASIC WL, EN 16931 and EXTENDED; EXTENDED acts as the structural base for EXTENDED-CTC-FR. Schematron and BR-FR-CTC stay explicitly out of scope.
Yes. I can work on the data model, the calculations, PDF/XML generation, validation and the connection to an accredited platform, without replacing business software that already works.
One contact, from diagnosis to production
I'm Nathan Le Ray, full-stack engineer and founder of SXN Labs. I work at the source: data model, calculations, Factur-X generation, validation and the connection to your platform — without replacing your business software.