\documentclass[twoside]{article}

\usepackage{hevea}
\usepackage{a4}
\usepackage{calc}
\usepackage{multicol}
\usepackage{tabularx}
\usepackage{makeidx}
%\usepackage{xifthen}
\usepackage{fancyhdr}
\usepackage{supertabular}
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\usepackage{ifpdf}
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\usepackage{hyperref}

%HEVEA \pdffalse

\hypersetup{%
  pdftitle     = {GNU-Prolog Manual},
  pdfsubject   = {GNU-Prolog Manual},
  pdfkeywords  = {GNU-Prolog, Prolog, ISO Prolog, Prolog Compiler, Finite Domain Constraints},
  pdfauthor    = {Daniel Diaz}
}
