BookStack\Services\ExportService::pageToPdf PHP Метод

    public function pageToPdf(Page $page)
    {
        $cssContent = file_get_contents(public_path('/css/export-styles.css'));
        $pageHtml = view('pages/pdf', ['page' => $page, 'css' => $cssContent])->render();
        $containedHtml = $this->containHtml($pageHtml);
        $pdf = \PDF::loadHTML($containedHtml);
        return $pdf->output();
    }