title: Generating Over 500 PDFs time out and throw Error in Larave/MPDF
body: <p>I am using (carlos-meneses/laravel-mpdf) package for my Laravel 6 project. I have around 550 product for which I need to generate PDFs in two languages(English + Chinese). I have set up a queue job to generate the PDFs in the background, which gets run by a corn job.</p>
  <p>But after a minute or so, the execution stops and throws 504 Error.</p>
  <p>I have setup
  <code>PHP max_execution_time = 600</code></p>
  <p>But still, get timed out.</p>
  <pre><code>$products_with_pdf = ProductDetail::whereNotNull('en_document_url')-&gt;orWhereNotNull('zh_document_url')
          -&gt;chunk(10, function ($products) {
              RegenerateAllPDFsOnDetailsUpdate::dispatch($products);
          });
  </code></pre>