--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/doc/unicharset_extractor.1.asc	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,47 @@
+UNICHARSET_EXTRACTOR(1)
+=======================
+
+NAME
+----
+unicharset_extractor - Reads box or plain text files to extract the unicharset.
+
+SYNOPSIS
+--------
+*unicharset_extractor*  [--output_unicharset filename] [--norm_mode mode] box_or_text_file [...]
+
+Where mode means:
+ 1=combine graphemes (use for Latin and other simple scripts)
+ 2=split graphemes (use for Indic/Khmer/Myanmar)
+ 3=pure unicode (use for Arabic/Hebrew/Thai/Tibetan)
+
+DESCRIPTION
+-----------
+Tesseract needs to know the set of possible characters it can output.
+To generate the unicharset data file, use the unicharset_extractor
+program on training pages bounding box files or a plain text file:
+
+    unicharset_extractor fontfile_1.box fontfile_2.box ...
+
+The unicharset will be put into the file './unicharset' if no output filename is provided.
+
+*NOTE* Use the appropriate norm_mode based on the language.
+
+SEE ALSO
+--------
+tesseract(1), unicharset(5)
+
+<https://tesseract-ocr.github.io/tessdoc/Training-Tesseract.html>
+
+HISTORY
+-------
+unicharset_extractor first appeared in Tesseract 2.00.
+
+COPYING
+-------
+Copyright \(C) 2006, Google Inc.
+Licensed under the Apache License, Version 2.0
+
+AUTHOR
+------
+The Tesseract OCR engine was written by Ray Smith and his research groups
+at Hewlett Packard (1985-1995) and Google (2006-2018).