title: Ghostscript true black and white conversion
body: <p>I'm trying to convert a colour pdf to a pure black and white tiff i.e. if the colour is anything other than white I want it to be pure black. At the moment I have colour lines turning speckled and faint which I believe is due to half-toning. Is there a way I can overwrite this half-toning? Examples below.</p>
  
  <p>Current Output:</p>
  
  <p><a href="https://i.stack.imgur.com/1RdNX.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/1RdNX.jpg" alt="Current output"></a></p>
  
  <p>Desired Output:</p>
  
  <p><a href="https://i.stack.imgur.com/ZXlNb.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/ZXlNb.jpg" alt="Desired Output"></a></p>
  
  <p>Thanks.</p>