\documentclass[a4paper]{article} %
\usepackage{graphicx,amssymb,grffile} %
\usepackage{mathptmx}
%\textwidth=15cm \hoffset=-1.2cm %
%\textheight=25cm \voffset=-2cm %
\usepackage[margin=1.73cm]{geometry}
\usepackage{anyfontsize}
\pagestyle{empty} %
\date{} %

\begin{document}

% Type down your abstract title
\title{Abstract title}

% Authors
\author{\fontsize{10}{12} \bf \underline{A. Author}$^1$, B. Author$^1$, C. Author$^{1,2}$\\ %
       \small \emph{$^1$Affiliation1, City, Country}\\
       \small \emph{$^2$Affiliation2, City, Country}\\ % Affiliation 2 (if needed)
       % Add authors and affiliation as needed
       \tt{\small author@university.com} % Only one corresponding e-mail
       }%

\maketitle
\thispagestyle{empty}
% The abstract

\begin{abstract}
 This is a sample abstract for the International Conference on Multiphoton Processes 24-27 September 2017, Budapest, Hungary. You can check the conference scope, list of invited and contributed talks, poster presentations and any other information about the conference at {\tt http://icomp2017.hu}.\\
 {\bf Please, submit a 1-page referenced abstract for review.} Use {\bf A4} page formatting and 2,5-cm margins all around the text. Please, make sure to \underline{\bf underline} the {\bf presenting author}. Body text paragraphs should be justified. Please, upload the abstract after converting it to {\bf pdf format}\cite{sample_ref}. Submission deadline is 15 June 2017, acceptance notes will be sent by 30 June.\cite{sample_refP}

\begin{figure}[ht!]
 \begin{center}
  \includegraphics[width=0.65\textwidth]{abstractTemplateIm}
  \caption{figure caption}
 \end{center}
 \end{figure}
\end{abstract}

\begin{thebibliography}{5}
 \bibitem{sample_ref}\small G. Farkas, C. T\'oth, “(Title can be omitted) Proposal for attosecond light pulse generation using laser induced multiple-harmonic conversion processes in rare gases,” \emph{Phys. Lett. A} {\bf168}, 447-450 (1992).
 \bibitem{sample_refP}\small Use et al. for publications with more than 4 authors.
\end{thebibliography}
\end{document}
