Bart> The ImageMagick package has a command line tool
  Bart> that can do this (among other things). The
  Bart> command is `convert`. ImageMagick is on the
  Bart> RedHat8.0 CDs or you can get it from their
  Bart> website: http://www.imagemagick.org/

That's absolutely *PERFECT*! *Exactly* what I needed.
That information helped me make a five-minute job out
of a couple of hours of tedious work.

Thanks very much! Mission accomplished.

-- 
Lynn