Third-party components of the in-browser e-invoice validation (pdf-magician.com/einvoice) Generated 2026-10-01 by scripts/build-einvoice-rules.mjs 1. EN 16931 validation artefacts (Schematron, compiled to SaxonJS SEF: rules/en16931-*.sef.json.gz) Version 1.3.16, (c) European Commission / CEN TC 434 — Licensed under the EUPL v1.2. Source code (unmodified): https://github.com/ConnectingEurope/eInvoicing-EN16931/releases/tag/validation-1.3.16 and in the KoSIT validator configuration (below). 2. XRechnung Schematron 2.6.0 and validator configuration XRechnung 3.0.2 (2026-08-31) (c) Koordinierungsstelle für IT-Standards (KoSIT) — Apache License 2.0 (https://www.apache.org/licenses/LICENSE-2.0) Source: https://github.com/itplr-kosit/validator-configuration-xrechnung/releases Modification (compiled files rules/xrechnung-*.sef.json.gz only): xr:checkIBAN: xs:integer → xs:decimal for the mod-97 check (SaxonJS xs:integer is a 53-bit double). 3. XML schemas: OASIS UBL 2.1 (Copyright (c) OASIS Open 2013. All Rights Reserved.) and UN/CEFACT Cross Industry Invoice D16B (Copyright (C) UN/CEFACT (2016). All Rights Reserved.) — unmodified, including their copyright notices, packed in xsd/*.json.gz. 4. SaxonJS 2.7 runtime (vendor/saxonjs/SaxonJS2.rt.js), unmodified binary form. Version 1.0, June 2020 Software: This license applies to the packages "xslt3" and "saxon-js" distributed via npm (https://www.npmjs.com) and to the modules SaxonJS2.js and SaxonJS2.rt.js available for download from the Saxonica web site (https://www.saxonica.com/). Copyright: The copyright in the Software belongs to Saxonica Ltd, except for third-party components listed in the documentation that are distributed under license. Binary form: In this license, "binary form" means the form in which the Software is issued (this is technically a set of obfuscated Javascript files). Deployment and use. The Software may be copied to any computer where the primary purpose is the execution of the software on that computer, or on connected client computers. Redistribution. Redistribution in binary form, without modification, is permitted as part of an application that makes use of the Software, provided that the following conditions are met: 1) Redistributions must reproduce the above copyright notice and the following disclaimer in the documentation and/or other materials provided with the distribution. 2) Except to the extent explicitly permitted by law, no reverse engineering, decompilation, or disassembly of this software is permitted. 3) Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. 4) Copying the software to a site whose primary purpose is to make it available to third parties is not permitted without specific prior written permission. If you institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the software itself infringes your patent(s), then your rights granted under this license shall terminate as of the date such litigation is filed. DISCLAIMER. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS." ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 5. libxml2 / xmllint compiled to WebAssembly — xmllint-wasm 5.3.0 (vendor/xmllint/), MIT licence: This project is MIT licensed, just like libxml which it is a port of. Copyright (C) 1998-2018 libxml and libxml.js authors. All Rights Reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is fur- nished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FIT- NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 6. @xmldom/xmldom 0.9.12 (bundled in saxon-worker.js), MIT licence: Copyright 2019 - present Christopher J. Brody and other contributors, as listed in: https://github.com/xmldom/xmldom/graphs/contributors Copyright 2012 - 2017 @jindw and other contributors, as listed in: https://github.com/jindw/xmldom/graphs/contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.