# How reduce space in beamer?

I have this code : i want reduce the space (see Figure)

%----------------------------------------------------------------------------------------
%   PACKAGES AND THEMES
%----------------------------------------------------------------------------------------

\documentclass{beamer}
\mode<presentation> {

\usetheme{PaloAlto}

%\setbeamertemplate{footline} % To remove the footer line in all slides uncomment this line
%\setbeamertemplate{footline}[page number] % To replace the footer line in all slides with a simple slide count uncomment this line

%\setbeamertemplate{navigation symbols}{} % To remove the navigation symbols from the bottom of all slides uncomment this line
}

\usepackage{graphicx} % Allows including images
\usepackage{booktabs} % Allows the use of \toprule, \midrule and \bottomrule in tables

%----------------------------------------------------------------------------------------
%   TITLE PAGE
%----------------------------------------------------------------------------------------

\title[Managerial Economics]{VW Invasion of North America} % The short title appears at the bottom of every slide, the full title is only on the title page

\institute[FDSM] % Your institution as it will appear on the bottom of every slide, may be shorthand to save space
{
\textit{Fudan Business} \\\textit{School of Management} \\ % Your institution for the title page
\medskip
}
\date{\today} % Date, can be changed to a custom date

\begin{document}

\section{Section 1}
\begin{frame}
\frametitle{Section 1}
\end{frame}

\end{document}


• Have you tried \title[Managerial Economics\vspace{-1em}]{VW Invasion of North America}? Sometimes it works. Another similar hack could be \section[\mbox{}\\[-2em] Section 1]{Section 1} – Partha D. Feb 20 '19 at 15:28
• @ParthaD. not working, other idea please – x-rw Feb 20 '19 at 15:47

This space contains the author name (but you don't provide \author).

You can redefine the sidebar left template to remove author and to reduce vertical spaces:

\documentclass{beamer}
\mode<presentation> {

\usetheme{PaloAlto}

%\setbeamertemplate{footline} % To remove the footer line in all slides uncomment this line
%\setbeamertemplate{footline}[page number] % To replace the footer line in all slides with a simple slide count uncomment this line

%\setbeamertemplate{navigation symbols}{} % To remove the navigation symbols from the bottom of all slides uncomment this line
}

\usepackage{graphicx} % Allows including images
\usepackage{booktabs} % Allows the use of \toprule, \midrule and \bottomrule in tables

%----------------------------------------------------------------------------------------
%   TITLE PAGE
%----------------------------------------------------------------------------------------

\title[Managerial Economics]{VW Invasion of North America} % The short title appears at the bottom of every slide, the full title is only on the title page

\institute[FDSM] % Your institution as it will appear on the bottom of every slide, may be shorthand to save space
{
\textit{Fudan Business} \\\textit{School of Management} \\ % Your institution for the title page
\medskip
}
\date{\today} % Date, can be changed to a custom date

\makeatletter
\setbeamertemplate{sidebar \beamer@sidebarside}%{sidebar theme}
{
\beamer@tempdim=\beamer@sidebarwidth%
{\usebeamerfont{title in sidebar}%
\vskip1.5em%
\hskip3pt%
\usebeamercolor[fg]{title in sidebar}%
\insertshorttitle[width=\beamer@tempdim,center,respectlinebreaks]\par%
\vskip.25em%
}%
\vfill
\ifx\beamer@sidebarside\beamer@lefttext%
\else%
\usebeamercolor{normal text}%
\vskip2pt%
\fi%
}%
\makeatother

\begin{document}
\section{Section 1}
\begin{frame}
\frametitle{Section 1}
\end{frame}

\end{document}