LuaBill - Open Source Business Document Generator
Copyright 2026 Vsevolod Shashkov & Mikhail Shashkov

This software is licensed under the Apache License,
Version 2.0.

https://www.apache.org/licenses/LICENSE-2.0

Third-party components retain their own licenses and attribution notices.

Separately shipped electronic-invoice validation resources:
EN 16931 CII validation artefacts 1.3.17, ConnectingEurope/eInvoicing-EN16931
contributors: EUPL-1.2. XRechnung Schematron 2.6.0, KoSIT and contributors:
Apache-2.0. The compiled XRechnung stylesheet includes support code generated
by SchXslt 1.10.1, Copyright (c) 2018-2021 David Maus: MIT.
Original licenses, README files and source release ZIPs are retained in
tools/validation-rules/. The official rule files and Mustang JAR are unchanged;
LuaBill's Apache-2.0 compatibility adapter omits only informational
svrl:metadata from the resulting report, preserving all assertions and severities.

Third-party component: luaqrcode (qrencode.lua)
Copyright (c) 2012-2020, Patrick Gundlach and contributors, see https://github.com/speedata/luaqrcode
Licensed under the 3-clause BSD license (BSD-3-Clause).
Upstream source used: https://github.com/speedata/luaqrcode/blob/6291d11249208d3eb2423bdaa1b491db34297d7a/qrencode.lua
The complete upstream copyright notice, license conditions and disclaimer
are retained at the beginning of qrencode.lua.

Additional bundled components retain their original notices and licenses:
CPython (Python Software Foundation and contributors); Qt, PySide6 and
Shiboken6 (The Qt Company and contributors); PyInstaller (its development
team and earlier authors, with the bootloader exception); Mustangproject
(Jochen Staerk and contributors), its Java dependencies, fonts and profiles;
and the Inno Setup installer engine (Jordan Russell and Martijn Laan).
See docs/THIRD_PARTY.en.html, docs/THIRD_PARTY_MUSTANG.html,
docs/THIRD_PARTY_TEX.html, docs/WINDOWS_NOTICES.md and tools/licenses/.
The Windows application also carries third-party-licenses/ with original
runtime notices and version/source/hash manifests.

Artwork provenance reported by the project owners:
LuaBill3D.ico was generated using ChatGPT.
Max_Mustermann.png and Musterfirma_GmbH.png are believed to have been
generated using ChatGPT; exact generation records are not confirmed.
Their PNG metadata records editing in GIMP 3.0.4, not authorship or a license.