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### 4.3 LaTeX cfg file

Is in the LaTeX input path (in particular in the current directory) a file called tbook.cfg, it is included immediately before \begin{document}. Typically you will redefine here the macro \MakeTitlePage, but you can also change the document font for example:

     \ifpdflatex\else\ifgallery\else
\psfonts
\makeatletter

\RequirePackage{geometry}
\@ifpackagelater{geometry}{2002/07/08}{%

The first three lines activate Times font, the rest sets the page margins (for odd pages). Both is only done if we are not producing a PDF (\ifpdflatex\else) and if we are nor producing a so-called gallery (\ifgallery\else). Adjust the values for your needs. You can also use another unit, like “in”.