\documentclass[12pt]{article}
\usepackage[pdftex,unicode,pdfauthor={Jakub Wilk},bookmarks,plainpages=false]{hyperref}
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\usepackage[utf8]{inputenc}
\usepackage{color}
\usepackage{graphicx}
\usepackage{times}
\setlength{\parindent}{0mm}

\begin{document}

\section{A}

\tiny         Inventore Labore Aperiam Soluta \\
\scriptsize   Eligendi delectus, quidem placeat \\
\footnotesize Eos exercitationem amet velit ullam \\
\small        Aspernatur modi cumque, deserunt \\
\normalsize   Nihil accusantium repellat soluta \\
\large        Eligendi repellendus cum culpa \\
\Large        Architecto, laudantium molestias \\
\LARGE        Cum blanditiis vitae libero \\
\huge         Explicabo vero inventore vel, est \\
\Huge         Reiciendis tempora vitae?

\newpage

\section{B}

\begin{equation}
e^{i\pi} + 1 = 0
\label{A}
\end{equation}

\newpage

\section{C}

\par
{\color{red} red}
{\color{green} green}
{\color{blue} blue}
{\color{cyan} cyan}
{\color{magenta} magenta}
{\color{yellow} yellow}

\par
\colorbox{green}{\color{red} red}
\colorbox{blue}{\color{green} green}
\colorbox{cyan}{\color{blue} blue}
\colorbox{magenta}{\color{cyan} cyan}
\colorbox{yellow}{\color{magenta} magenta}
\colorbox{red}{\color{yellow} yellow}

\newpage

\pagecolor{red}

\section{D}

Optio reprehenderit molestias amet aliquam, similique doloremque fuga labore
voluptatum voluptatem, commodi culpa voluptas, officia tenetur expedita quidem
hic repellat molestiae quis accusamus dolores repudiandae, quidem in ad
voluptas eligendi maiores placeat ex consectetur at tenetur amet.

\newpage

\pagecolor{white}

\section{E}

\subsection{E1}

$\to$ \ref{A}

\subsection{E2}

\url{http://jwilk.net/}

\newpage

\section{F}

\includegraphics[width=\textwidth]{test0-image.jpeg}

\end{document}
