Create page border using tikz

Question

I want to create the page border like the image in the attachment but I don't know how to do that? Please help me and thank you.

Answer 1

If the given border is only an example to show what you want to do you could use the package pgfornament.

Using scrlayer-scrpage the border could be added to one or more layer page styles.

\documentclass{article}
\usepackage[%
  margin=4cm
  %,showframe% to show the page layout
]{geometry}
\usepackage[object=vectorian]{pgfornament}
\newcommand\om{5mm}% ornament margin
\newcommand\ow{5cm}% ornament width
\newcommand\ols{5.5mm}% ornament line shift
\newcommand\on{63}% ornament number
\colorlet{bordercolor}{purple}
\tikzset{
ol/.style={line width=1mm,dotted}% style for the lines
}
% define the border and save it in a box
\newsavebox\border
\sbox\border{%
  \tikz[color=bordercolor]{
    \useasboundingbox(0,0)rectangle(\paperwidth,-\paperheight);
    \foreach[count=\i]\a/\p/\s in {%
      north west/{\om,-\om}/none,
      north east/{{\paperwidth-\om},-\om}/v,
      south east/{{\paperwidth-\om},{-\paperheight+\om}}/c,%
      south west/{\om,{-\paperheight+\om}}/h%
      }\nodeanchor=\a at (\p){\pgfornament[width=\ow,symmetry=\s]{\on}};
    \begin{scope}[ol]
      \draw([yshift=-\ols]n1.north east)--([yshift=-\ols]n2.north west);
      \draw([xshift=-\ols]n2.south east)--([xshift=-\ols]n3.north east);
      \draw([yshift=\ols]n3.south west)--([yshift=\ols]n4.south east);
      \draw([xshift=\ols]n4.north west)--([xshift=\ols]n1.south west);
    \end{scope}
  }%
}
\usepackage[manualmark]{scrlayer-scrpage}
\clearpairofpagestyles
\cfoot*{\pagemark}
% define a switch to enable and disable the border
\newif\ifBorder
% define a new layer
\DeclareNewLayer[{%
    background,
    page,
    contents={\ifBorder\usebox\border\fi}
  }]{border.bg}
% add the border layer to all layer page styles (scrheadings, plain, empty, ...) ...
\AddLayersAtBeginOfPageStyle{@everystyle@}{border.bg}
\usepackage{blindtext}% dummy text
\begin{document}
\Bordertrue% enable the border
\Blindtext[10]
\clearpage
\Borderfalse% disable the border
\Blindtext[10]
\end{document}

With scrlayer-scrpage it is also possible to disable the border on selected page styles:

\documentclass{article}
\usepackage[%
  margin=4cm
  %,showframe% to show the page layout
]{geometry}
\usepackage[object=vectorian]{pgfornament}
\newcommand\om{5mm}% ornament margin
\newcommand\ow{5cm}% ornament width
\newcommand\ols{5.5mm}% ornament line shift
\newcommand\on{63}% ornament number
\colorlet{bordercolor}{purple}
\tikzset{
ol/.style={line width=1mm,dotted}% style for the lines
}
% define the border and save it in a box
\newsavebox\border
\sbox\border{%
  \tikz[color=bordercolor]{
    \useasboundingbox(0,0)rectangle(\paperwidth,-\paperheight);
    \foreach[count=\i]\a/\p/\s in {%
      north west/{\om,-\om}/none,
      north east/{{\paperwidth-\om},-\om}/v,
      south east/{{\paperwidth-\om},{-\paperheight+\om}}/c,%
      south west/{\om,{-\paperheight+\om}}/h%
      }\nodeanchor=\a at (\p){\pgfornament[width=\ow,symmetry=\s]{\on}};
    \begin{scope}[ol]
      \draw([yshift=-\ols]n1.north east)--([yshift=-\ols]n2.north west);
      \draw([xshift=-\ols]n2.south east)--([xshift=-\ols]n3.north east);
      \draw([yshift=\ols]n3.south west)--([yshift=\ols]n4.south east);
      \draw([xshift=\ols]n4.north west)--([xshift=\ols]n1.south west);
    \end{scope}
  }%
}
\usepackage[manualmark]{scrlayer-scrpage}
\clearpairofpagestyles
\addtokomafont{pagehead}{\color{blue!50!green!80!black}\large}
\chead{The current page style is \toplevelpagestyle{} \ifstr{\toplevelpagestyle}{\currentpagestyle}{}{as alias for \currentpagestyle}.}
\cfoot{\pagemark}
% define a switch to enable and disable the border
\newif\ifBorder
% define a new layer
\DeclareNewLayer[{%
    background,
    page,
    contents={\ifBorder\usebox\border\fi}
  }]{border.bg}
% add the border layer to all layer page styles (scrheadings, plain, empty, ...) ...
\AddLayersAtBeginOfPageStyle{@everystyle@}{border.bg}
% but no border on empty pages 
\AddToLayerPageStyleOptions{empty}{oninit=\Borderfalse}
\usepackage{blindtext}% dummy text
\begin{document}
\Bordertrue
\Blindtext
\clearpage
\pagestyle{empty}
\Blindtext[10]
\clearpage
\pagestyle{plain}
\Blindtext
\end{document}

The pagestyle on page 1 is scrheadings and on page 4 plain both with border. But pages 2 and 3 use pagestyle empty and there is no border because of

\AddToLayerPageStyleOptions{empty}{oninit=\Borderfalse}

Answer 2

Saving your border as ZmI9O.jpg, and employing my answer referenced in my comment, I only had to adjust the filename, paper (aspect), scale, and the offset to create a letter using your border.

Upon EDIT, I used the geometry package to show how to set the margin to fit the border, and changed the hook from "Thispage" to "Everypage", so that the border would continue on subsequent pages.

\documentclass[letter]{article}
\usepackage{everypage}
\usepackage{graphicx}
\usepackage{lipsum}
\usepackage[margin=1.5in]{geometry}
% THESE ARE LaTeX DEFAULTS; CAN CHANGE IF NEEDED.
\def\PageTopMargin{1in}
\def\PageLeftMargin{1in}
\newcommand\atxy[3]{%
 \AddEverypageHook{\smash{\hspace*{\dimexpr-\PageLeftMargin-\hoffset+#1\relax}%
  \raisebox{\dimexpr\PageTopMargin+\voffset-#2\relax}{#3}}}}
% VERIFIED THAT SETTING \hoffset AND \voffset DO NOT BREAK SOLUTION.
%\hoffset=0.4in
%\voffset=0.2in
\begin{document}
\atxy{-1.65in}{11.4in}{\includegraphics[scale=1.42]{ZmI9O}}
\lipsum[1-7]
\end{document}