# Commercial Licensing

The LEGX toolkit, including the Document Integrity Verifier, is
distributed under the [PolyForm Noncommercial 1.0.0](LICENSE) licence.
That licence permits any **noncommercial** use — research, education,
personal use, internal evaluation, hobby projects, use by charitable
and government organisations — at no cost.

If you want to use the Software for a **commercial purpose**, you need
a separate, paid commercial licence. This includes (but is not limited
to):

- Selling, sublicensing, or rebranding the Software or any derivative.
- Operating a hosted service (SaaS, paid Hugging Face Space, paid API,
  managed deployment) that processes documents for paying customers.
- Embedding the Software, the lexicon, the detector matrix, or the
  reasoning verdict path into a commercial product, plug-in, browser
  extension, mobile app, or enterprise pipeline.
- Using the Software internally at a for-profit company in support of
  revenue-generating activities (e.g. as part of a contracts pipeline,
  legal-review workflow, KYC/AML stack, AI-safety product).

If any of that describes your situation, please get in touch.

## What a commercial licence gets you

- A clear, written licence to use the Software for the purposes you
  describe, on the terms we agree.
- Carve-outs from the [Acceptable Use Policy](ACCEPTABLE_USE.md) where
  appropriate (e.g. authorised red-team engagements with a documented
  scope).
- Optional: indemnification, SLA, prioritised support, custom detector
  development, multilingual lexicon expansion, model fine-tuning.
- Optional: removal of the "Required Notice" obligation for your
  branded distribution, subject to agreement on attribution elsewhere.

## What a commercial licence does **not** get you

- Permission to violate the [Acceptable Use Policy](ACCEPTABLE_USE.md)
  outside the carve-outs explicitly written into your commercial
  agreement.
- Permission to misrepresent the Software's output as compliance
  certification or as an audit by the licensor. The
  [`DISCLAIMER.md`](DISCLAIMER.md) limits remain in force.
- Permission to re-licence the Software to third parties as if it were
  your own work.
- An indefinite, unconditional warranty. Commercial agreements will
  define warranty scope; outside that scope the no-warranty clause
  applies.

## Third-party dependency note

The Document Integrity Verifier (the detector path that ships with the
Hugging Face Space) uses **pypdfium2** (Apache 2.0 / BSD-3-Clause,
wrapping Google's BSD-3 PDFium) and **pypdf** (BSD-3-Clause) for all
PDF operations. There is **no AGPL / commercial-licence wall** between
you and a commercial deployment of the detector.

The authoring side of the LEGX toolkit (`legal_doc_redteam/fixtures.py`
and friends) does still use PyMuPDF, but the authoring side is excluded
from the Space export and from any commercial detector licence anyway.
If you specifically need a commercial licence to use the authoring side,
you would also need a commercial PyMuPDF licence from Artifex; mention
that when you contact us so we can scope the agreement correctly.

## How to get in touch

Email: **gregor.koch@gmail.com**

Please include:

1. The legal name of the entity that would hold the licence.
2. A short description of the intended use (one paragraph is enough).
3. Estimated scale (documents / month, deployment surface).
4. Any specific carve-outs you need from the AUP.

Initial response is typically within a few business days. Commercial
licences are bespoke; there is no automatic pricing page.

## Good faith

If you are genuinely unsure whether your use is commercial, ask. The
licensor would rather have an early conversation than discover a
deployment later and have to send a notice under the LICENSE's
**Violations** section.

If you are a small research group, an academic lab, an open-source
project, a non-profit, a government agency, or an individual using the
Software for personal or educational purposes, **you already have a
licence under PolyForm Noncommercial**. You do not need to contact us
unless you are about to commercialise.