# How to put the candidate's declaration chapter and certificate chapter in the same page and in the center in latex report

\documentclass[a4paper, 12pt]{report}

\usepackage{fancyhdr}
\usepackage{titlesec}

\titleformat{\chapter}[display]
{\normalfont\huge\bfseries}{\chaptertitlename\ \thechapter}{20pt}{\Huge}
\titlespacing*{\chapter}{0pt}{-20pt}{20pt}

\pagenumbering{roman}

\begin{document}

\chapter*{\underline{CANDIDATE'S DECLARATION}}%
xxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxx\\

xxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxx\\

xxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxx\\

\par\noindent\rule{\textwidth}{0.4pt}

\chapter*{\underline{CERTIFICATE}}%
This is to certify that the above statement made by the candidate is correct to best of my knowledge and belief.
\\
\\
\\
\\
\\
\begin{flushright}
xxxxxxxxxxxxxxx\\
Professor\\
xxxxxxxxxxxxxx\\
xxxxxxxxxxx
\end{flushright}

\tableofcontents

\pagenumbering{arabic}

\chapter{Introduction}

\end{document}


and in center

• If you like my answer and it was helpful, please consider upvoting (by clicking on the arrows next to the score) and/or marking it as the accepted answer (by clicking on the checkmark ✓). – Mensch Aug 2 '19 at 18:13

Well, you can redefine \cleardoublepage and \clearpage to do nothing to get no new page for your second \chapter*{}. To get both chapters centered you have to add \centering in the \titleformat and redefine it after you need not centering any more ...

Please see the following code (dirty hack!):

\documentclass[a4paper, 12pt]{report}

\usepackage{fancyhdr}
\usepackage{titlesec}
\usepackage{showframe}% <============ to visualize typing area and margins

\titleformat{\chapter}[display]
{\normalfont\huge\bfseries\centering}{\chaptertitlename\ \thechapter}{20pt}{\Huge}
%                          ^^^^^^^^^^  <================================
\titlespacing*{\chapter}{0pt}{-20pt}{20pt}

\pagenumbering{roman}

\begin{document}

\chapter*{\underline{CANDIDATE'S DECLARATION}}%
xxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxx\\

xxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxx\\

xxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxxxxx\\xxxxxxxxxxxxxxxxxxxxxxxx\\

\par\noindent\rule{\textwidth}{0.4pt}\vspace{\baselineskip} % <=====

{\let\cleardoublepage\relax % <=====================================
\let\clearpage\relax % <============================================
\chapter*{\underline{CERTIFICATE}}%
}

This is to certify that the above statement made by the candidate is correct to best of my knowledge and belief.
\vspace{2cm} % <========================================================
\begin{flushright}
xxxxxxxxxxxxxxx\\
Professor\\
xxxxxxxxxxxxxx\\
xxxxxxxxxxx
\end{flushright}

\titleformat{\chapter}[display] % <=====================================
{\normalfont\huge\bfseries}{\chaptertitlename\ \thechapter}{20pt}{\Huge}
\tableofcontents

\pagenumbering{arabic}

\chapter{Introduction}

\end{document}


and the result (please see that you should not use several \\ to get a vertical space, use \vspace{2cm} instead and change the value to your needs):

As you can see (package showframe shows the typing area in the pdf, delete/comment it for real printing) your first chapter is a little bit too long, Certificate is centered, Contents is not centered.