整个文档上重复和旋转的文本水印

Question

我需要用重复并旋转 45 度的水印文本填充整个页面 (100%)。我应该对文档中的每一页都这样做。此代码运行良好，但在这种情况下，我只有一个位于中心的水印。

\documentclass{article}
\usepackage{tikz}
\usepackage{pdfpages}
\pagestyle{empty}
\newcommand{\filename}{/home/Documents/c.pdf}
\newcommand{\watermark}{\tikz[remember picture, overlay]  \node [black,opacity=0.1,rotate=45,scale=4.0] at (current page.north west)  {This is watermark text to repeat again and again} -- (current page.south east);}

\begin{document}
\foreach \index in {1,...,\the\pdflastximagepages}
{
\includepdf[pages=\index,pagecommand={\watermark}]{\filename}
}
\end{document}

欢迎任何想法或建议吗？

感谢您的时间和帮助。

Answer 1

\documentclass{article}
\usepackage{tikz}
\usepackage{pdfpages}
\pagestyle{empty}

\newcommand*\watermarktext[1]{\leavevmode\hbox to 2\textwidth{\leaders\vbox to 2\textheight{\leaders\hbox{#1}\vfil}\hfil}}


\newcommand{\watermark}{\tikz[remember picture, overlay]  
 \node [black,opacity=0.1,rotate=45,scale=4.0] at (current page.center)  
   {\watermarktext{This is watermark text to repeat again and again}};}

\begin{document}

\includepdf[pages=1,pagecommand={\watermark}]{example-image}

\end{document}