withPageMargins(view($template)->render(), $page);
$html = $this->withDocumentTitle($html, $metadata['Title'] ?? null);
$pdf = $this->wrapper();
$pdf->setPaper($page->dompdfPaper(), $page->orientation);
$pdf->loadHTML($html);
if ($metadata !== []) {
$pdf->addInfo($metadata);
}
return new DompdfResponse($pdf);
}
/**
* dompdf exposes no margin API — the page box comes from an `@page` rule, so
* CSS is the only lever (see PdfPageSetup::marginCss).
*
* Injected at the top of rather than the bottom so a template that
* declares its own `@page` still wins, later rules of equal specificity
* taking precedence. Prepending is the fallback for markup with no ,
* which dompdf tolerates.
*/
private function withPageMargins(string $html, PdfPageSetup $page): string
{
$style = '';
$injected = preg_replace('/(]*>)/i', '$1'.$style, $html, 1, $count);
return $count ? $injected : $style.$html;
}
/**
* dompdf reads the document Title from the element during render(),
* which happens after any addInfo() call, so metadata set through the API is
* silently overwritten by whatever the template happened to put there. The
* only way to make the two drivers agree on the title is to write it into
* the markup.
*/
private function withDocumentTitle(string $html, ?string $title): string
{
if ($title === null || $title === '') {
return $html;
}
$escaped = htmlspecialchars($title, ENT_QUOTES | ENT_HTML5, 'UTF-8');
$replaced = preg_replace(
'#<title\b[^>]*>.*?#is',
"{$escaped}",
$html,
1,
$count
);
if ($count) {
return $replaced;
}
// No to replace, so add one. dompdf only looks inside <head>.
$injected = preg_replace('/(<head\b[^>]*>)/i', "$1<title>{$escaped}", $html, 1, $count);
return $count ? $injected : $html;
}
protected function wrapper(): PDF
{
return App::make('dompdf.wrapper');
}
}