title: Convert CMYK PDF into spot colors (colours)
body: <p>Is it possible to pre-process (in batch) PDFs that are in CMYK format to separate out into spot colours?</p>
  
  <p>I have a collection of PDFs that are in CMYK but I require them to be in a 2 spot colour format.</p>
  
  <p>The colours are red and black. The black (K) is fine, but the red spot needs to be a merge of the Magenta &amp; Yellow.</p>
  
  <p>Is this possible at all? I'd prefer something that would be able to separate spots based on a given colour rather than merging colours as that becomes very limited.</p>
  
  <p>I've looked in adobe acrobat X pro and that doesn't seem to do what I want. I could probably do it manually in photoshop but it would be a long winded process for the large amount of PDFs I have.</p>