the easieast way is to use package ifpdf
\usepackage{ifpdf}% part of the hyperref bundle \ifpdf \usepackage[scaled=0.92]{helvet} ... \usepackage[pdftex,...]{hyperref} ... \else \usepackage[ps2pdf,...]{} \fi
Is the ifpdf-package always available when hyperref is installed?
yes
\pagenumbering{Roman}
btw default in publications is roman, the lower one. at least in my books :-)
pdfkeywords={LyX}]{hyperref}
it doesn't hurt, when you use option pdftex here, then you are on the safe side
\else % if dvi or ps is produced
% link all cross references and URLs in dvi output \usepackage{hyperref}
same here with ps2pdf
-----------------------------
any objections?
only that I do not like scrbook as document class. It causes much more problems than the ordinary book: too much updates, too much options -> confuses the user who's not up to date with his system and can not do it himself, e.g. users at university.
And you should _always_ use latin modern fonts \IfFileExists{lmodern}{\usepackage{lmodern}}{}
I normally do, but as lmoderm is still under development,
I would discourage from using it as standard (e.g. \textcircled don't work with lmodern).
???
\documentclass[12pt]{article}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\begin{document}\textcircled{3}
\end{document}
(For further information Boguslaw Jackowski informed me yesterday that after an 'excessively long break' he will continue to work on that fonts.)
every package is under construction ... just like LyX :-) lmodern is the best solution anyway.
Herbert
