LaTeX or pdfLaTeX

$ epstopdf fig.eps
Nice to convert the old eps based LaTeX file into pdf based LaTeX file to be compiled with pdflatex. Fullcompatibility with the eps way can be keep if the extension is not specified in the LaTeX file, e.g.
\includegraphics{fig} %without extension

To force the compilation of the document with pdflatex:
%Force pdflatex processing even with "$ latex" (required by arXiv)
just after de \documentclass

El documento original está disponible en http://clustercien.udea.edu.co/web/tiki-index.php?page=epstopdf