在页边空白处绘制带有文字的页面框架

Question

我目前正在使用 latex 考试类制作试卷。我希望页面框架在两个边距上都带有“写在页边距中的答案将不会被标记”字样，并且页眉或页脚位于框架之外，如下图所示。

页面框架示例 http://image.slidesharecdn.com/lsintrotest-131015190449-phpapp02/95/liberal-studies-practice-paper-for-beginners-5-638.jpg?cb=1381881942

这是我的一些代码。非常感谢您的帮助。

\documentclass[a4paper,addpoints]{exam}
\usepackage{lipsum}
\pagestyle{headandfoot}
\header{Prepared by Dexter}{}{Page \thepage}
\begin{document}
\begin{questions}
\question[3] Thanks for your help.
\question[2] \lipsum
\end{questions}
\end{document}

Answer 1

像这样吗？

代码：

\documentclass[a4paper,addpoints]{exam}
\usepackage{tikzpagenodes}
\usetikzlibrary{calc}
\usepackage{eso-pic}

\AddToShipoutPictureBG{%
\begin{tikzpicture}[overlay,remember picture]
\draw[line width=1.5pt]
      ($ (current page text area.north west) + (-3mm,3mm) $)
      rectangle
      ($ (current page text area.south east) + (3mm,-3mm) $);
\node[rotate=90]
      at ([xshift=15mm] current page.west)
      {Answer written in the margins will not be marked};
\node[rotate=-90]
      at ([xshift=-15mm] current page.east)
      {Answer written in the margins will not be marked};
\end{tikzpicture}
}

\usepackage{lipsum}
\pagestyle{headandfoot}
\header{Prepared by Dexter}{}{Page \thepage}
\footer{Answer written in the margins will not be marked}{}{}
\begin{document}
\begin{questions}
\question[3] Thanks for your help.
\question[2] \lipsum
\end{questions}
\end{document}