通过 \includegraphics 使用整页水印？

Question

draftwatermark.sty我以前用过 Sergio Callegari 的，只是重新定义\sc@watermark以包含我的全页单页 pdf。唉，我认为这在最新的 2020 版 draftwatermark 中不再起作用：

\documentclass[12pt]{article}

\usepackage{draftwatermark}

\makeatletter
%% \renewcommand\sc@watermark{\includegraphics{backgroundimage.pdf}}%% used to work in older versions
  %% includes file, but is no longer the stamp background in the previewer.
\renewcommand\draftwatermark@printwm{\includegraphics{./backgroundimage.pdf}}
\makeatother

\begin{document}

This is just some text. This is just some text. This is just some text. This is just some text. This is just some text. This is just some text. This is just some text.

\end{document}

印章在输出 PDF 中。只是不再可见。除了采用重量级的 tikz 路线外，还有其他选择吗？