Centered title page in twoside report

Question

I'm writing my thesis using a twoside report. However, when it comes to the title page I think I want to have it centered i.e. the left margin and the right margin to be equal. How can I achieve this for the title page only?

This is a minimum working example demonstrating what I mean:

\documentclass[11pt,twoside,a4paper]{report}

\title{The title of my thesis}
\author{My name \\ \\ \\ \emph{Supervisor:} \\ My supervisor's name \\ \\}
\date{\today}

\begin{document}
\maketitle
\end{document}

Thanks in advance!

Answer 1

There is a difference between titlepage and the cover of a thesis.

The titlepage is inside your thesis and should obey the default layout.

The cover is usually outside and can/should be centered. To get a centered cover my approach is to separate it in a second tex document and include it with pdfpages.

\includepdf{cover/cover.pdf}

And my cover.tex

\documentclass[
    pdftex,
    fontsize=11pt,
    a4paper
   ]{scrbook}

\usepackage[utf8]{inputenc}
\usepackage[a4paper,includeall,bindingoffset=0cm,margin=2cm,
            marginparsep=0cm,marginparwidth=0cm]{geometry}

\begin{document}

\begin{titlepage}
\thispagestyle{empty}
    ...
\end{titlepage}

\end{document}

This approach is preferable because often you have to hand in cover and the thesis as separate files for print and you don't have to manipulate the default type area.

Answer 2

You can use geometry for this:

\documentclass[11pt,twoside,a4paper]{report}
\usepackage[margin=1in,bindingoffset=.2in,showframe]{geometry} %% Remove showframe in your document

\title{The title of my thesis}
\author{My name \\[5ex] \emph{Supervisor:} \\ My supervisor's name \\[2ex]}
\date{\today}

\begin{document}
\newgeometry{margin=1in}
\maketitle
\restoregeometry
\end{document}

Note: Instead of using \\ \\ \\ etc. you can issue \\[5ex] to leave extra line space.