title: How to combine two image (png) files to print them in duplex using AppleScript
body: <p>Right, so I'll try and explain this as clearly as possible;</p>
  
  <p>As soon as two files are placed in the folder, I want a Folder Action to 
  print these files - got that...</p>
  
  <p>but, and this is my problem. At the moment it prints the files after each other, and I want to make sure that they are printed together, duplex.</p>
  
  <p>so far I've got this:</p>
  
  <pre><code>    on adding folder items to this_folder after receiving added_items
      do shell script "defaults write com.apple.print.custompresets com.apple.print.lastPresetPref Duplex"
  
  
      tell application "Finder" to print these_items
  end adding folder items to
  </code></pre>
  
  <p>so I reckon I need to combine/append the two files - so the printer sees them as one, and only one print job is the result, thus creating a duplex printed file :D</p>
  
  <p>would be awesome if you have tips/ideas on how to solve this!
  cheers!</p>