移动页边距以便装订

Question

 \documentclass[a4paper,12pt,openright,twoside]{book}
 \usepackage[utf8]{inputenc}
 \usepackage{indentfirst}

 \usepackage{fancyhdr}
 \usepackage{booktabs}

  \pagestyle{fancy}\addtolength{\headwidth}{14pt}
  \renewcommand{\chaptermark}[1]{\markboth{\thechapter.\ #1}{}}
  \renewcommand{\sectionmark}[1]{\markright{\thesection \ #1}{}}

  \rhead[\fancyplain{}{\bfseries\leftmark}]{\fancyplain{}{\bfseries\thepage}}
  \lhead[\fancyplain{}{\bfseries\thepage}]{\fancyplain{}{\bfseries\rightmark}}

  \begin{document}

我想将奇数页的左边距向右移动一点，偶数页的右边距向左移动一点。我需要在装订的两侧留出更多空间，这种配置是居中的，因此装订占用了空间，结果在视觉上不对称，难以浏览。我该怎么办？

Answer 1

长度\oddsidemargin需要\evensidemargin增加/减少。

 \documentclass[a4paper,12pt,openright,twoside]{book}
 \usepackage[utf8]{inputenc}
 \usepackage{indentfirst}

 \usepackage{fancyhdr}
 \usepackage{booktabs}

  \pagestyle{fancy}\addtolength{\headwidth}{14pt}
  \renewcommand{\chaptermark}[1]{\markboth{\thechapter.\ #1}{}}
  \renewcommand{\sectionmark}[1]{\markright{\thesection \ #1}{}}

  \rhead[\fancyplain{}{\bfseries\leftmark}]{\fancyplain{}{\bfseries\thepage}}
  \lhead[\fancyplain{}{\bfseries\thepage}]{\fancyplain{}{\bfseries\rightmark}}

\usepackage{lipsum}
\addtolength\oddsidemargin{1cm}
\addtolength\evensidemargin{-1cm}
  \begin{document}
\lipsum[1-7]
\end{document}