function _getpagesize($size)
{
if (is_string($size)) {
$size = strtolower($size);
if (!isset($this->StdPageSizes[$size])) {
$this->Error('Unknown page size: ' . $size);
}
$a = $this->StdPageSizes[$size];
return array($a[0] / $this->k, $a[1] / $this->k);
} else {
if ($size[0] > $size[1]) {
return array($size[1], $size[0]);
} else {
return $size;
}
}
}