\newgeometry 之后的页码定位问题

Question

我使用 \usepackage{fancyhdr} 来设置标题和页码的位置。我在一个页面上报告了几个图表，因为我想让这些图表足够大，所以我使用了 \newgeometry 来调整页边距。但是，现在页码不再位于底部，也不在中间。我试过 \adjustwidth，但没有成功。你们知道我如何既能调整页边距，又能保持页码的位置与以前相同吗？任何帮助都将不胜感激。非常感谢你们的时间和帮助！

\documentclass[a4paper,12pt,openright]{book}
\usepackage[left=30mm,right=35mm,top=35mm, bottom=30mm]{geometry}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc} 
\usepackage{lmodern}
\usepackage[ngerman,english]{babel} 
\usepackage{epsfig,amsfonts,amsmath,amsthm,amsbsy,amssymb,calc,longtable,url,rotating,graphicx,graphics,lscape,tabularx,xtab,eurosym}
\usepackage[flushleft]{threeparttable}
\usepackage[font=footnotesize, labelfont=footnotesize, labelformat=empty, position=top]{subcaption}
\usepackage[font=small,skip=0pt]{caption}
\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhead{}
\fancyhf{}
\fancyhead[LO]{\rightmark}
\fancyhead[RE]{\leftmark}
\fancyfoot{}
\fancyfoot[CE, CO]{\thepage}
\renewcommand{\headrulewidth}{0pt}
\usepackage{tabularray}
\begin{document}
\chaptermark{}
\setcounter{footnote}{0}
\section{1}
Example page with correct position of page number

\newgeometry{left=20mm,right=25mm}
\begin{figure}
\caption{Threshold in 2004}
\vspace*{1em}
\centering
    \makebox[20pt]{\raisebox{100pt}{\rotatebox[origin=c]{90}{Full Sample}}}%
    \begin{subfigure}[b]{0.475\textwidth} 
    \caption*{Eligible} \vspace{-0.6em}%
    \includegraphics[clip, trim=0cm 0cm 0cm 0.5cm, width=\textwidth]{Graph_1.pdf} 
    \end{subfigure}\hspace{0.01cm}\vspace{-0.5em}%
    \begin{subfigure}[b]{0.475\textwidth} 
    \caption*{Not Eligible} \vspace{-0.6em}%
    \includegraphics[clip, trim=0cm 0cm 0cm 0.5cm, width=\textwidth]{Graph_2.pdf} 
    \end{subfigure}
    
    \makebox[20pt]{\raisebox{100pt}{\rotatebox[origin=c]{90}{Sub-Sample}}}%
    \begin{subfigure}[b]{0.475\textwidth} 
    \includegraphics[clip, trim=0cm 0cm 0cm 0.3cm, width=\textwidth]{Graph_3.pdf} 
    \end{subfigure}\hspace{0.01cm}\vspace{-0.5em}%
    \begin{subfigure}[b]{0.475\textwidth} 
    \includegraphics[clip, trim=0cm 0cm 0cm 0.3cm, width=\textwidth]{Graph_4.pdf} 
    \end{subfigure}
    \vspace*{-0.25cm}
\caption*{\footnotesize The graphs shows XXX...}
\end{figure}
\restoregeometry

\end{document}

Answer 1

\fancyfootoffset{0pt}之后执行 \newgeometry 会导致fancyhdr重新计算页眉和页脚。

之后就不需要了\restoregeometry。

\documentclass[a4paper,12pt,openright]{book}
\usepackage[left=30mm,right=35mm,top=35mm, bottom=30mm]{geometry}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc} 
\usepackage{lmodern}
\usepackage[ngerman,english]{babel} 
\usepackage{epsfig,amsfonts,amsmath,amsthm,amsbsy,amssymb,calc,longtable,url,rotating,graphicx,graphics,lscape,tabularx,eurosym}
\usepackage[flushleft]{threeparttable}
\usepackage[font=footnotesize, labelfont=footnotesize, labelformat=empty, position=top]{subcaption}
\usepackage[font=small,skip=0pt]{caption}
\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhead{}
\fancyhf{}
\fancyhead[LO]{\rightmark}
\fancyhead[RE]{\leftmark}
\fancyfoot{}
\fancyfoot[CE, CO]{\thepage}
\renewcommand{\headrulewidth}{0pt}
\usepackage{tabularray}

\usepackage{showframe} % ONLY to show the margins <<<<<<<<<<<

\begin{document}
    \chaptermark{}
    \setcounter{footnote}{0}
    \section{1}
    Example page with correct position of page number
    
    \newgeometry{left=20mm,right=25mm}
    \fancyfootoffset{0pt} % added <<<<<<<<<<<<<<<<
    
    \begin{figure}
        \caption{Threshold in 2004}
        \vspace*{1em}
        \centering
        \makebox[20pt]{\raisebox{100pt}{\rotatebox[origin=c]{90}{Full Sample}}}%
        \begin{subfigure}[b]{0.475\textwidth} 
            \caption*{Eligible} \vspace{-0.6em}%
            \includegraphics[clip, trim=0cm 0cm 0cm 0.5cm, width=\textwidth]{example-image} 
        \end{subfigure}\hspace{0.01cm}\vspace{-0.5em}%
        \begin{subfigure}[b]{0.475\textwidth} 
            \caption*{Not Eligible} \vspace{-0.6em}%
            \includegraphics[clip, trim=0cm 0cm 0cm 0.5cm, width=\textwidth]{example-image} 
        \end{subfigure}
        
        \makebox[20pt]{\raisebox{100pt}{\rotatebox[origin=c]{90}{Sub-Sample}}}%
        \begin{subfigure}[b]{0.475\textwidth} 
            \includegraphics[clip, trim=0cm 0cm 0cm 0.3cm, width=\textwidth]{example-image} 
        \end{subfigure}\hspace{0.01cm}\vspace{-0.5em}%
        \begin{subfigure}[b]{0.475\textwidth} 
            \includegraphics[clip, trim=0cm 0cm 0cm 0.3cm, width=\textwidth]{example-image} 
        \end{subfigure}
        \vspace*{-0.25cm}
        \caption*{\footnotesize The graphs shows XXX...}
    \end{figure}
    \restoregeometry

    Some text.
    
\end{document}