[OS X TeX] Background images

[Tim Brophy]

I received the following on Stack Exchange and it does what I want with a little tweaking. Thanks for the suggestions.

Tim

\documentclass{report}
\usepackage{everypage}
\usepackage{tikzpagenodes}
\usetikzlibrary{calc}
\usepackage{lipsum}% MWE only



\AddEverypageHook{\tikz[remember picture,overlay]{%

  
\ifodd\value{page}\draw ($(current page text area.north west)+(-0.5\marginparsep,0pt)$)

    -- 
($(current page text area.south west)+(-0.5\marginparsep,0pt)$)
;
  
\else\draw ($(current page text area.north east)+(0.5\marginparsep,0pt)$)

    -- 
($(current page text area.south east)+(0.5\marginparsep,0pt)$)
;
  
\fi}}



\begin{document}
\lipsum [1-16]
\end{document}
> On 16 Feb 2017, at 14:36, b.a.lee at rocketmail.com wrote:
> 
> Sorry, I mean \vrule. 
> 
> Sent from Yahoo Mail on Android
> 
> On Thu, 16 Feb 2017 at 0:16, Alain Schremmer
> <schremmer.alain at gmail.com> wrote:
> Just a thought: have you looked at tcolorbox? (e.g. Border Line Option Keys)
> --schremmer
> 
> 
> On , at 2017 Feb 15,10:45 AM, Tim Brophy wrote:
> 
> > I want to have a vertical line to the left of every odd numbered page and to the right of every even numbered page. Is it possible to do this?
> > 
> > Thanks in advance,
> > 
> > Tim Brophy
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