从特定页面开始触发新几何图形

Question

我正在尝试在不依赖预定义类的情况下制作字母（为什么不呢？）。在下面的示例中，我想将第 1 页后的顶部边距更改为 0.75 英寸。

\documentclass[12pt]{report}
\usepackage[english]{babel}
\usepackage{datetime}
\usepackage[
% https://css.paperplaza.net/conferences/support/page.php
letterpaper,
top=1in, %first
% top-0.75in,%rest
left=0.75in,
right=0.75in,
bottom=0.75in,
showframe%only for testing
]{geometry}
\usepackage{lipsum}
\usepackage{titleps}
\usepackage{xparse}

\NewDocumentCommand{\myheading}
{O{}+mO{\newline}}
{\noindent #1#2#3}

\newpagestyle{rest}
[\small\sffamily]
{
  \sethead{}{xyz}{}
  \setfoot{}{\thepage}{}

% this has no effect  
%  \newgeometry{%
%    letterpaper,
%    % top=1in, %first
%    top=0.75in,%rest
%    left=0.75in,
%    right=0.75in,
%    bottom=0.75in
%  }

}

\begin{document}
\thispagestyle{empty}
\pagestyle{rest}

\myheading{John Smith\\
  1000 Main Street\\
  Washington, DC}

\myheading[\shortdate]{\today}

\myheading{John Doe\\
  1001 Main Street\\
  Washington, DC}

\myheading[Re:~]{xyz}

\myheading{Sir,}

\lipsum[1-5]\\

\myheading{Sincerely}[,]

\vspace*{3em}

\myheading{John Smith.}

\myheading[Encl.:~]{Specimen xyz}

\myheading[PS:~]{One last thing\dots}

\end{document}

Answer 1

根据文档主体的要求设置页边距。对于您的情况，页边距应为

\usepackage[
  % https://css.paperplaza.net/conferences/support/page.php
  letterpaper,
  margin = 0.75in
]{geometry}

\vspace*{0.25in}然后，在第一页（或，在序言中）发布\AtBeginDocument{\vspace*{0.25in}}，将第一页上的文本块减少 1/4 英寸（或，将顶部边距增加 1/4 英寸）。

以下是显示用例的模板：

\documentclass{article}

\usepackage[
  margin = 0.75in,
  showframe% Just for this example
]{geometry}
\usepackage{lipsum}

\AtBeginDocument{\vspace*{0.25in}}

\begin{document}

\sloppy% Just for this example
\lipsum[1-15]

\end{document}

您的文档的所有页面的边距都将相同，即使第一页有变化（通过showframe向您添加选项来可视化）geometry设置）。

Answer 2

flowfram 包在这么简单的事情上有点浪费。但它确实可以改变特定页面的几何形状。

\documentclass[12pt]{report}
\usepackage[english]{babel}
\usepackage{datetime}
\usepackage[
% https://css.paperplaza.net/conferences/support/page.php
letterpaper,
top=0.75in,% use larger
left=0.75in,
right=0.75in,
bottom=0.75in,
showframe%only for testing
]{geometry}
\usepackage{lipsum}
\usepackage{titleps}
\usepackage{xparse}

\usepackage{flowfram}
\newflowframe[1]{\textwidth}{\dimexpr \textheight-.25in}{0pt}{0pt}

\NewDocumentCommand{\myheading}
{O{}+mO{\newline}}
{\noindent #1#2#3}

\newpagestyle{rest}
[\small\sffamily]
{
  \sethead{}{xyz}{}
  \setfoot{}{\thepage}{}

% this has no effect  
%  \newgeometry{%
%    letterpaper,
%    % top=1in, %first
%    top=0.75in,%rest
%    left=0.75in,
%    right=0.75in,
%    bottom=0.75in
%  }

}

\begin{document}
\thispagestyle{empty}
\pagestyle{rest}

\myheading{John Smith\\
  1000 Main Street\\
  Washington, DC}

\myheading[\shortdate]{\today}

\myheading{John Doe\\
  1001 Main Street\\
  Washington, DC}

\myheading[Re:~]{xyz}

\myheading{Sir,}

\lipsum[1-5]\\

\myheading{Sincerely}[,]

\vspace*{3em}

\myheading{John Smith.}

\myheading[Encl.:~]{Specimen xyz}

\myheading[PS:~]{One last thing\dots}

\end{document}