BookStack/app/Entities/Tools/PdfGenerator.php

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<?php
namespace BookStack\Entities\Tools;
use Barryvdh\Snappy\Facades\SnappyPdf;
use Barryvdh\DomPDF\Facade as DomPDF;
class PdfGenerator
{
/**
* Generate PDF content from the given HTML content.
*/
public function fromHtml(string $html): string
{
$useWKHTML = config('snappy.pdf.binary') !== false && config('app.allow_untrusted_server_fetching') === true;
if ($useWKHTML) {
$pdf = SnappyPDF::loadHTML($html);
$pdf->setOption('print-media-type', true);
} else {
$pdf = DomPDF::loadHTML($html);
}
return $pdf->output();
}
}