[Tex/LaTex] PDF fonts are very thin

Question

I found that the fonts in my pdf file are very thin while printing. I use the path latex->dvi->ps->pdf.

I tried including

\usepackage[T1]{fontenc} 
\usepackage[utf8]{inputenc}                    

But I got the same result. I am using texlive-2013 on a Ubuntu 14.04 machine.

Answer 1

Just to ease you to choose the better font conveniently. Apparently, I have made it several decades ago, here (click).

\documentclass[preview,border=12pt,multi]{standalone}

\usepackage{filecontents}

\begin{filecontents*}{template.tex}
\documentclass[preview,border=12pt,12pt]{standalone}
\usepackage[T1]{fontenc} 
\usepackage{\fonttouse}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\begin{document}
This is an equation just for fun.
\[
\int_a^b f(x)\, \mathrm{d} x = F(b) -F(a)
\]
\end{document}
\end{filecontents*}


\usepackage{pgffor,graphicx}

\def\dojob#1{\immediate\write18{pdflatex -jobname=template-#1 "\def\noexpand\fonttouse{#1} \noexpand\input{template.tex}"}}
\def\fontlist{kpfonts, fourier, newtxtext, XCharter, libertine, gentium, Alegreya}


\begin{document}
\foreach \x in \fontlist {%
\dojob{\x}
\preview
\section*{\x}
\begin{center}
    \includegraphics[width=\linewidth]{template-\x}
\end{center}
\endpreview
}
\end{document}