Re: pdf reads in Windows not in Mepis
The Acer pdf file also works here in Okular.
One thing to try first is to install any extra Recommends or Suggests for Okular. Running "apt-cache depends okular" results in these Suggests:
so that would be the first thing I'd try.
PS. I use the command line there because it's faster and gives me a nice output to cut and paste, unlike Synaptic.