font size for whole document in latex code example
Example 1: latex text size
\Huge
\huge
\LARGE
\Large
\large
\normalsize
\small
\footnotesize
\scriptsize
\tiny
Example 2: latex font sizes
\Huge
\huge
\LARGE
\Large
\large
\normalsize (default)
\small
\footnotesize
\scriptsize
\tiny