title: How to increase the font size of the body text and sections
body: <p>I'm using Emacs and its org mode markup language to generate PDFs. It uses LaTeX however I write the markup similar to a markdown document, then the LaTeX export is handled by Emacs relying on a config file.</p>
  <p><a href="https://i.stack.imgur.com/czcCZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/czcCZ.png" alt="enter image description here" /></a></p>
  <p>I tried increasing the size of the sections by using the <code>sectsy</code> package. It works but only for the first level heading, all the other headings stays the same small size. How can I fix that? I want the other headings to increase as well to some extent. Of course, the second level heading has to be a little bit smaller size than the first level heading and so on.</p>
  <p>Also I would like to increase the body text as well just a little bit, like 1pt or something like that.
  These are the options I fed to Emacs's config file:</p>
  <pre><code>  (require 'ox-latex)
  
    (setq org-latex-compiler &quot;xelatex&quot;)
    (add-to-list 'org-latex-classes
                 '(&quot;article&quot;
                   &quot;\\documentclass[11pt,a4paper]{article}
                    \\usepackage{fontspec}
                    \\setmainfont{Charis SIL}
                    \\usepackage{geometry}
                    \\geometry{a4paper, left=0.67in, right=0.67in,
                               top=0.5in, bottom=0.67in}
                    \\setlength{\\parindent}{0pt}
                    \\setlength{\\parskip}{1em}
                    \\setcounter{secnumdepth}{0}
                    \\renewcommand{\\baselinestretch}{1.2}&quot;
                   (&quot;\\section{%s}&quot;       . &quot;\\section*{%s}&quot;)
                   (&quot;\\subsection{%s}&quot;    . &quot;\\subsection*{%s}&quot;)
                   (&quot;\\subsubsection{%s}&quot; . &quot;\\subsubsection*{%s}&quot;)
                   (&quot;\\paragraph{%s}&quot;     . &quot;\\paragraph*{%s}&quot;)
                   (&quot;\\subparagraph{%s}&quot;  . &quot;\\subparagraph*{%s}&quot;)))
  </code></pre>