chk_defaced 0.4.0

Detect tampered documents before they reach an LLM: font defacement (the extracted text differs from the glyphs actually drawn) and invisible or cloaked text, in PDF, DOCX and HTML. Deterministic, no LLM, no network.
Documentation
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chk_defaced
Copyright (C) 2026 Dario Finardi <df@dariofinardi.it>

SPDX-License-Identifier: AGPL-3.0-only

This program is free software: you can redistribute it and/or modify it under
the terms of the GNU Affero General Public License, version 3, as published by
the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.

The complete, verbatim text of that license is in the file LICENSE distributed
with this program.  If it is missing, see <https://www.gnu.org/licenses/agpl-3.0.txt>.

Developed as part of the document-integrity work for Edito (https://edito-pdf.com),
the GDPR-native document intelligence platform by Jugaad s.r.l. (Italy).