I am setting a "formula book" to gather my formulas I need during exams.
For that I use a [a5paper, 8pt]{article} but in most cases I use even \footnotesize because it looks better in my eyes and it gives me more space on a small A5 page.
extsize does not suit me because the manual says its only for 8-20pt.
I was not able to find a definition how to do define that permanently.
Is there any way to set the \normalsize to the size of \footnotesize or define \footnotesize as default?
\Huge? Add\usepackage{anyfontsize}and specify the font size you want\fontsize{5pt}{7pt}\selectfont. – Werner Sep 20 '17 at 19:20