when is a PDF not a PDF?

[nobluspam5476-MTb9uo0rH9eJIAd+swBSYQ at public.gmane.org (R. Luoma)]

On Mon, 14 Sep 2009 15:05:19 -0400
Dan Ritter <dsr-mzpnVDyJpH4k7aNtvndDlA at public.gmane.org> wrote:

> If you choose print-to-PDF, and print to a file, is that file
> different from export-to-PDF (which is presumably what you were
> doing before)?
> 
> -dsr-

My version of OpenOffice (3.0.1) will only allow Postscript on
print to a file.  While I can use ps2pdf to convert, it is not
clear how to compare easily the resulting PDF files.

-- 
R. Luoma