title: Where is the Origin (x,y) of a PDF page?
body: <p>I am using <code>iText</code> to create my <strong>PDF</strong> files. </p>
  
  <p>I want to position text at some specific place in the document using the method I found here: <a href="https://stackoverflow.com/questions/1625455/itext-positioning-text-absolutely#">itext positioning text absolutely</a>. </p>
  
  <p>However, I cannot figure out where to find the origin of the coordinate system of the page. </p>
  
  <p><code>bottom left corner</code>? <code>top right corner</code>? <code>bottom right corner</code>? <code>top left corner</code>? </p>
  
  <p><strong><em>Where is this origin?</em></strong></p>