# The LaTeX package sanitize-umlaut - version 1.3.0 (2023/05/15) > Copyright (c) 2016-2023 by Prof. Dr. Dr. Thomas F. Sturm > This work may be distributed and/or modified under the > conditions of the LaTeX Project Public License, either version 1.3 > of this license or (at your option) any later version. > The latest version of this license is in > http://www.latex-project.org/lppl.txt > and version 1.3 or later is part of all distributions of LaTeX > version 2005/12/01 or later. > This work has the LPPL maintenance status `author-maintained`. > This work consists of all files listed in README.md `sanitize-umlaut` sanitizes umlauts to be used directly in index entries for MakeIndex and friends with pdflatex. This means, that inside `\index` an umlaut can be used as `"U` or directly. In both cases, the letter is written as `"U` into the raw index file for correct processing with MakeIndex and pdflatex. ## Contents of the package - `README.md` this file - `CHANGES.md` log of changes (history) - `sanitize-umlaut.sty` LaTeX package file (style file) - `sanitize-umlaut.pdf` Documentation - `sanitize-umlaut.tex` Source code of the documentation (main file) - `*.doc.*` Source code of the documentation (include files) - `german.ist` MakeIndex style ## Installation Copy the contents of the `sanitize-umlaut.tds.zip` from CTAN to your local TeX file tree. Alternatively, put the files to their respective locations within the TeX installation: - `sanitize-umlaut.sty` -> /tex/latex/sanitize-umlaut - all other files -> /doc/latex/sanitize-umlaut