poppler-example.pl

    use Poppler;
    my $path = 'file:///path/to/some.pdf';

    my $o = Poppler::Document->new_from_file($path);

    my $page = $o->get_page( 0 );

    my $dimension = $page->get_size;

    warn $dimension->get_width;
    warn $dimension->get_height;

    # render to cairo
    use Cairo;
    my $surface = Cairo::ImageSurface->create ('argb32', 100, 100);
    my $cr = Cairo::Context->create ($surface);

    $page->render_to_cairo( $cr );

    $cr->show_page;
    $surface->write_to_png ('output.png');