[XeTeX] Shrink/expand page-height to fit

[Clinton Gormley]

> > The column width is known beforehand, but the height isn't (other than
> > an absolute maximum for the physical page height).
> > 
> > So I'd like to be able to crop the page height to fit the contents,
> > after the contents have been rendered.
> 
> > Additionally, I'd like to draw a border around the content, with rounded
> > edges - obviously I need to know the content height before drawing this
> > box.

Ulrike - your solution below is JUST what I needed.  Many many thanks!

Clint

> 
> \documentclass{article}
> \usepackage{lipsum}
> \usepackage{tikz}
> \usetikzlibrary{backgrounds}
> \usepackage[%
>  paperwidth=8cm,
>  vmargin=10pt
>  ]{geometry}
>  
> \begin{document}
> \newbox\mycontent
> \savebox\mycontent{%
>     \begin{tikzpicture}
>      [background rectangle/.style=
>         {double,ultra thick,draw=red,top color=blue,
>          rounded corners},
>       show background rectangle]
> \node[use as bounding box]{\parbox{\linewidth}{\lipsum[1]abc}};
> \end{tikzpicture}}
> 
> \pdfpageheight=\dimexpr\dp\mycontent+\ht\mycontent+20pt
> 
> \noindent\makebox[\linewidth]{\usebox\mycontent}
> \end{document}
>