I am using the book document class with no font size specified, so it should be the default 10pt.
After \begin{document} I have the line \fontsize{9}{10.8} to change all the font to 9pt.
\documentclass{book}
\usepackage{bookman}
\usepackage{amsthm}
\newtheoremstyle{break}
%{\topsep}{\topsep}%
{8pt}
{8pt}
{}{}%
{\bfseries}{}%
{\newline}{}%
\theoremstyle{break}
\newtheorem{test}{Test}
\counterwithin*{test}{subsection}
\begin{document}
\fontsize{9}{10.8}
The quick brown fox jumps over the lazy dog. This font looks to be 9pt.
\begin{test}
This is the test. This seems to come out smaller.
\end{test}
\end{document}
The heading "Test" and the body text are smaller than the 9pt specified in \fontsize.
What smaller font size is this? And can I get the entire document to output in this smaller font size with \fontsize? Or is \fontsize causing these two sizes of fonts?
\selectfont
after the\fontsize
declaration. The "smaller" size is in fact the requested 9pt. But this is not the best way to set a smaller font size for the whole document, as any macro calling\normalsize
will revert to 10pt. – campa Feb 14 '20 at 9:41