\documentclass[10pt]{article}

%\usepackage[a4paper,margin=2cm]{geometry}
\usepackage[a4paper,landscape,bindingoffset=0cm,%
            left=2cm,right=2cm,top=1.7cm,bottom=2cm,
            footskip=0cm]{geometry}
\usepackage[table]{xcolor}
\usepackage{tikz}
\usepackage{watermark}
\usepackage{qrcode}
\usepackage{transparent}

%a4paper size is 210 × 297 mm

\usepackage[printwatermark]{xwatermark}
\usepackage{graphicx}

\DeclareWatermarkParser{|}
%\newwatermark[allpages,color=red!50,angle=0,scale=1,xpos=0,ypos=-2mm]{\begin{tikzpicture}
%\filldraw (0,0) circle (2pt);
%\end{tikzpicture}
%}

\usepackage{blindtext}
\usepackage[contents={},opacity=0]{background}

\definecolor{titlegrammar}{RGB}{255,128,0}
\definecolor{titlegray}{RGB}{230,230,230}

%\def\cmtopt{28.452755906694}
%\draw[->,thick] (1,-0.5*\x) -- ++(2,0);
\newcommand{\qrycoord}{
\begin{tikzpicture}[>=stealth]
\foreach \x in {1,2,3,4,5,6,7} {
\draw (0,-0.5*\x) node[]{\bf\x};
}
\foreach \x in {8,9,10,11,12,13,14,15,16,17,18,19,20,21,22} {
\draw (0,-0.5*\x) node[]{\x};
}
\foreach \x in {23,24,25,26,27,28,29} {
\draw (0,-0.5*\x) node[]{\bf\x};
}
\end{tikzpicture}
}
\newcommand{\qrxcoord}{
\begin{tikzpicture}[>=stealth]
\foreach \c [count=\x from 1] in {a,b, c, d, e, f, g}{
\draw (0.5*\x,0) node[]{\bf\c};
}
\foreach \c [count=\x from 8] in {h, i, j, k, l, m, n, o, p, q, r, s, t, u, v}{
\draw (0.5*\x,0) node[]{\c};
}
\foreach \c [count=\x from 23] in {w, x,y,z,å,ä,ö}{
\draw (0.5*\x,0) node[]{\bf\c};
}
\end{tikzpicture}
}

\begin{document}
%\clearpage
\backgroundsetup{position={0,0},opacity=0.3,placement=bottom,angle=0,scale=1,contents={\begin{tikzpicture}
    \fill[titlegray] (0cm,0cm) rectangle (\paperwidth,\paperheight);
  \filldraw[help lines,step=5mm,line width=1pt,gray]      (0cm,0cm) grid (\paperwidth,\paperheight);
    \end{tikzpicture}}
}

\backgroundsetup{opacity=0.5}

\section*{Making QR codes by hand}

\begin{minipage}{0.2\textwidth}
\vspace{9mm}
\hfill
\qrycoord
\hspace{5mm}
\end{minipage}
\begin{minipage}{0.8\textwidth}
\hspace{1mm}
\qrxcoord

\vspace{3.75mm}
\hspace{1.5mm}
\textcolor{black}{
\qrcode[height=14.5cm]{https://www.overleaf.com/read/bfxtgnpzhgkb}}
\end{minipage}

\newpage

\section*{Making QR codes by hand}

\begin{minipage}{0.2\textwidth}
\vspace{9mm}
\hfill
\qrycoord
\hspace{5mm}
\end{minipage}
\begin{minipage}{0.8\textwidth}
\hspace{1mm}
\qrxcoord

\vspace{3.75mm}
\hspace{1.5mm}
\textcolor{gray!50}{
\qrcode[height=14.5cm]{https://www.overleaf.com/read/bfxtgnpzhgkb}}
\end{minipage}

\newpage

\section*{Making QR codes by hand}

\begin{minipage}{0.2\textwidth}
\vspace{9mm}
\hfill
\qrycoord
\hspace{5mm}
\end{minipage}
\begin{minipage}{0.8\textwidth}
\hspace{1mm}
\qrxcoord

\vspace{3.75mm}
\hspace{1.5mm}
\textcolor{white}{\transparent{0}
\qrcode[height=14.5cm]{https://www.overleaf.com/read/bfxtgnpzhgkb}}
\end{minipage}



\end{document}