include image

build.pl

#!/usr/bin/env perl
use Template;

my $DEBUG = 9;

my $tt = Template->new({
    INCLUDE_PATH => './',
    OUTPUT_PATH  => './',
});
my $vars = {
    title => 'Hello World',
};
#$tt->process('casual-contract.tt2', $vars, 'casual-contract.pdf', binmode => 1) || die $tt->error();
$tt->process('tttest.tt2', $vars, 'tttest.pdf', binmode => 1) || die $tt->error();

test.png

tttest.tt2

[%- USE Latex;
     FILTER latex("pdf");  -%]
 
\documentclass{article}
\usepackage{wallpaper}

\begin{document}
\ThisCenterWallPaper{0.25}{test.png}
  This is a PDF document generated by
  LaTeX and the Template Toolkit, with some
\end{document}
 
[%  END; -%]

$ ./build.pl 
latex error - xelatex exited with errors:
! Unable to load picture or PDF file 'test.png'.
l.9 \end{document}
! Package graphics Error: Division by 0.
l.9 \end{document}
! Package graphics Error: Division by 0.
l.9 \end{document}
! Unable to load picture or PDF file 'test.png'.
l.9 \end{document}