Creating Quality Adobe PDF Files from TeX with DVIPS
This document, by Kendall Whitehouse, describes one way to generate
quality PDF files with (La)TeX. Some of the default fonts for TeX and
LaTeX do not work well with PDF. I understand an easier method on some
systems is to use the "times" package (with the "usepackage" command
in the header).
http://www.math.hawaii.edu/~ralph/MathOnWeb/TeXPDF.html