title: What is PixelOffsetMode?
body: <p><a href="https://msdn.microsoft.com/en-us/library/system.drawing.graphics.pixeloffsetmode%28v=vs.110%29.aspx" rel="noreferrer">MSDN</a>  doesn't explain it for someone who doesn't already know what it is. I've searched, but only found that it sets the quality of rendering. But in what way? What, for example, does </p>
  
  <blockquote>
    <p>Specifies that pixels are offset by -.5 units, both horizontally and
    vertically, for high speed antialiasing. (<a href="https://msdn.microsoft.com/en-us/library/system.drawing.drawing2d.pixeloffsetmode(v=vs.110).aspx" rel="noreferrer">MSDN</a>)</p>
  </blockquote>
  
  <p>mean? </p>