I want to make a document in the the article class with a watermark on all the pages. Furthermore, I want to be able to control the opacity of this watermark. The following code gives 2 problems: 1) Watermark is on the first page only 2) I cannot adjust the opacity of the watermark. Is there a way to solve these issues?
\documentclass[12pt,a4paper,twoside,envcountsect]{article}
\usepackage{fancyhdr}
\usepackage{lastpage}
\usepackage[titles,subfigure]{tocloft}
\usepackage{subcaption}
\usepackage{geometry}
\geometry{top=2.5cm , bottom=2.5cm , left=2.5cm , right=2.5cm , headsep=9mm , footskip=14mm , marginparwidth=2.0cm , marginparsep=0.25cm , a4paper , pdftex}
\pagestyle{fancy}
\fancyhead{}
\fancyhead[LE,RO]{ \footnotesize \nouppercase \leftmark }
\fancyhead[LE,RO]{}
\lhead{\footnotesize lhead}
\chead{\footnotesize chead}
\rhead{\footnotesize rhead}
\fancyfoot{}
\rfoot{Page \thepage \space of \pageref{LastPage}}
\lfoot{lfoot}
\renewcommand{\headrulewidth}{0.6pt}
\renewcommand{\footrulewidth}{0.6pt}
\renewcommand{\sectionmark}[1]{\markboth{#1}{}}
\usepackage[printwatermark]{xwatermark}
\newwatermark[
allpages,
opacity=0.5,
color=red,
angle=45,
scale=3.14,
xpos=0,
ypos=0
]{WATERMARK} % watermark underneath
%\newwatermark*[allpages,color=red,angle=45,scale=3,xpos=3.3,ypos=3.8]{WATERMARK} % watermark on top
\usepackage[]{hyperref}
\newcounter{Chapcounter}
\newcommand\showmycounter{\addtocounter{Chapcounter}{1}\themycounter}
\newcommand{\chapter}[1]
{
\addcontentsline{toc}{section}{\large\color{cyan} #1}
}
\hypersetup{colorlinks=true}
\hypersetup{linkcolor=black}
\begin{document}
\renewcommand*{\contentsname}{\LARGE Contents}
\vspace{1cm}
\begin{center}
\huge{Headline}
\end{center}
\vspace{1cm}
\tableofcontents\newpage
\chapter{Calculus}
\section{Subject}
\newpage
\chapter{Algebra}
\section{Subject}
\end{document}
\documentclass[12pt,a4paper,twoside]{article}
\usepackage{fancyhdr}
\usepackage{lastpage}
\usepackage[titles,subfigure]{tocloft}
\usepackage{subcaption}
\usepackage{geometry}
\geometry{top=2.5cm , bottom=2.5cm , left=2.5cm , right=2.5cm , headsep=9mm , footskip=14mm , marginparwidth=2.0cm , marginparsep=0.25cm , a4paper , pdftex}
\pagestyle{fancy}
\fancyhead{}
\fancyhead[LE,RO]{ \footnotesize \nouppercase \leftmark }
\fancyhead[LE,RO]{}
\lhead{\footnotesize lhead}
\chead{\footnotesize chead}
\rhead{\footnotesize rhead}
\fancyfoot{}
\rfoot{Page \thepage \space of \pageref{LastPage}}
\lfoot{lfoot}
\renewcommand{\headrulewidth}{0.6pt}
\renewcommand{\footrulewidth}{0.6pt}
\renewcommand{\sectionmark}[1]{\markboth{#1}{}}
\usepackage{tikz}
\AddToHook{shipout/background}{
\begin{tikzpicture}[remember picture,overlay]
\node[font=\Huge,red,rotate=45,opacity=0.45] at (current page.center) {Watermark};
\end{tikzpicture}
}
\usepackage[]{hyperref}
\newcounter{Chapcounter}
\newcommand\showmycounter{\addtocounter{Chapcounter}{1}\themycounter}
\newcommand{\chapter}[1]
{
\addcontentsline{toc}{section}{\large\color{cyan} #1}
}
\hypersetup{colorlinks=true}
\hypersetup{linkcolor=black}
\begin{document}
\renewcommand*{\contentsname}{\LARGE Contents}
\vspace{1cm}
\begin{center}
\huge{Headline}
\end{center}
\vspace{1cm}
\tableofcontents\newpage
\chapter{Calculus}
\section{Subject}
\newpage
\chapter{Algebra}
\section{Subject}
\end{document}