Process Multiple Files w/ PDF Files

  When I use Process Multiple Files and I point to words a Folder it only works when there are jpg files in the folder.  I want to convert over 1K+ PDF files into JPG files.  Can I use this product and it's functionality to do this?  Especially, can I do it in a Batch mode?  Next month I may need to convert 2K+ PDF files over to jpg files and it would be good to use this product to create the jpg files for me.  Again, I need it to run in a Batch mode with no UI, once I set it up.

  Can anyone assist me in letteing me know if this can be done?  Thanx in advance.

Jerry