Simple signatures style

Question

I would like to make signatures on my document like this. I'm using \documentclass{article}

Answer 1

Here is one option using an outstretched tabular:

\documentclass{article}
\usepackage{array}
\begin{document}

\begin{center}
  \renewcommand{\arraystretch}{1.5}% http://tex.stackexchange.com/q/31672/5764
  \begin{tabular}{>{\centering\arraybackslash}p{.5\linewidth}}
    \hline
    Prof.~Dr.~Beltrano Garcia -- Orientador \\
    \textit{Universidade Federal do Tocantins} \\[3\bigskipamount]
    \hline
    Profa.~Ma.~Fulana de Tal \\
    \textit{Centro Universit\'ario do Tocantins} \\[3\bigskipamount]
    \hline
    Prof.~Ms.~Ciclano de Tal \\
    \textit{Universidade Federal do Tocantins}
  \end{tabular}
\end{center}

\end{document}

Adjust the width .5\linewidth to suit your needs.