\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{anysize}
\usepackage{graphicx}
\parindent=0pt
\parskip=14pt
\marginsize{25mm}{25mm}{5mm}{5mm} % left right top bottom
\pagestyle{empty}
\usepackage{hyperref}
\hypersetup{
colorlinks=true, citecolor=blue, urlcolor=blue, linkcolor=black,
%hidelinks=true,
pdftitle=Untitled\ document
}
\newcommand{\exdesc}[1]{\textit{``#1''}}
\newcommand{\abs}[1]{\lvert #1 \rvert}
\newcommand{\1}{{-1}}
\newcommand{\viiva}{\noindent\rule{\textwidth}{0.4pt}}
\newcommand{\rarr}{\rightarrow}
\newcommand{\lrarr}{\leftrightarrow}
% \land = \wedge, \lor = \vee
\newcommand{\nor}{\veebar}
\begin{document}

placeholder

\includegraphics[width=16cm]{filename}

\newcommand{\ket}[1]{\ensuremath{\left|#1\right\rangle}}

\end{document}