<div dir="ltr"><div dir="ltr">On Mon, Feb 25, 2019 at 10:47 AM Philip Taylor <<a href="mailto:P.Taylor@rhul.ac.uk">P.Taylor@rhul.ac.uk</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF">
    Maybe something along the lines of the following (replace "100" by
    the maximum page number)<br>
    <br>
    \documentclass{minimal}
    <p style="margin:0px;text-indent:0px">\usepackage[papersize={5.5in,8.5in},
      margin=0pt, ignoreall]{geometry}</p>
    <p style="margin:0px;text-indent:0px">\setlength{\parindent}{0pt}</p>
    <p style="margin:0px;text-indent:0px">\usepackage{graphicx}</p>
    <p style="margin:0px;text-indent:0px">\begin{document}</p>
    <p style="margin:0px;text-indent:0px">\count 254
      = 1</p>
    <p style="margin:0px;text-indent:0px">\loop</p>
    <p style="margin:0px;text-indent:0px"> 
      \includegraphics[viewport= 0 0 396 612, page=\count
      254]{two-up.pdf}</p>
    <p style="margin:0px;text-indent:0px"> 
      \includegraphics[viewport= 396 0 792 612, page=\count
      254]{two-up.pdf}</p>
    <p style="margin:0px;text-indent:0px">\ifnum
      \count 254 < 100 %%% maximum page number<br></p>
    <p style="margin:0px;text-indent:0px">  
      \advance \count 254 by 1</p>
    <p style="margin:0px;text-indent:0px">\repeat</p>
    <p style="margin:0px;text-indent:0px">\end{document}</p></div></blockquote></div><div><br></div>That (starting from 1 not 0 and only including each page once) worked beautifully; thanks.<br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><p>—Joel C. Salomon</p></div></div></div></div></div></div></div>