更改页边距

Question

我使用过showframe软件包，发现我的页面包含大量边距和可能两个不需要的占位符，一个用于页面标题，一个用于评论。我该如何删除这些边距或更改其几何形状？

\documentclass[a5paper,pagesize,10pt,bibtotoc,pointlessnumbers,
normalheadings,DIV=9,twoside=false]{scrbook}

\usepackage[nohead,nofoot]{geometry}
% twoside, openright
\KOMAoptions{DIV=last}

\usepackage{showframe}

\title{A book title}   
\author{Temouri Sisaouri} 
\date{\today} 

\begin{document}

%=========================================
\begin{titlepage}
        \centering{
            {\fontsize{40}{48}\selectfont 
            A book title}
        }\\

        \vspace{10mm}
        \centering{\Large{Temouri Sisaouri}}\\
        \vspace{\fill}
        \centering \large{2014}
\end{titlepage}
\end{document}

Answer 1

例如：

\documentclass[a5paper,pagesize,10pt,bibtotoc,pointlessnumbers,
normalheadings,twoside=false, 0.7headlines,headexclude]{scrbook} % DIV=9,

% \usepackage[nohead,nofoot]{geometry}
% twoside, openright
% \KOMAoptions{DIV=last}

\usepackage{typearea}
\areaset[0mm]{11cm}{17cm} % selbst setzen

\usepackage{showframe}

\setlength{\marginparwidth}{0.7\marginparwidth}

\title{A book title}   
\author{Temouri Sisaouri} 
\date{\today} 

\begin{document}

%=========================================
\begin{titlepage}
        \centering{
            {\fontsize{40}{48}\selectfont 
            A book title}
        }\\

        \vspace{10mm}
        \centering{\Large{Temouri Sisaouri}}\\
        \vspace{\fill}
        \centering \large{2014}
\end{titlepage}
\end{document}