% Set page geometry such as: margin, aspect ratio, ...
% Documentation see: https://texdoc.org/serve/geometry.pdf/0
\geometry {
    papername=a4paper,  % size of paper
    portrait,           % aspect ratio format
    % margins
    left=3cm,
    right=2cm,
    top=2cm,
    bottom=2cm,
    % includes the head of the page, \headheight and \headsep, into total body.
    includehead,
    % show a frame around text (for debuging)
    showframe=false,
}