title: Script (or some other means) to convert RGB to CMYK in PDF?
body: <p>Is it possible to write a script for Adobe Illustrator or some other tool that will read the contents of a number of PDF files and convert all the RGB colours to CMYK?</p>
  
  <p>If so, could somebody please point out some of the steps involved, or where to find more information on this?</p>