Running out of memory in tcpdi_parser

[Marchiuzzz]

I've been using this package for over a year now and suddenly started getting memory exhaustion errors
PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) in <[...]>/tcpdi_parser.php on line 882
Here's my code

public function downloadFiles($files, $name = 'name.pdf'){
      $pdf = new \TCPDI();
      $pdf->SetPrintHeader(false);
      $pdf->SetPrintFooter(false);
      $filesArr = [];
      $pdf->SetTitle($name);
      foreach($files as $f){
        $filePath = $f->getFirstMedia('pdf')->getFullUrl();
        $width = $f->sheetsize->width;
        $height = $f->sheetsize->height;
        $port_land = ($width > $height) ? "landscape" : "portrait";
        $pdf->AddPage($port_land, array($width, $height));

  	$pageCount = $pdf->setSourceFile($filePath);
        for($i = 1; $i <= $pageCount; $i+=1)
        {
          $tplId = $pdf->importPage($i);
          $pdf->useTemplate($tplId, 0, 0, $width);
          if($pageCount > $i){
            $pdf->AddPage();
          }
        }

      }
      $name = str_replace('.pdf', '', $name).'.pdf';
      $pdf->Output($name, "I");
    }

I'm attaching one of the pdfs that causes this error, I'm really lost at where should I even begin to look for the problem.
problems.pdf

[noxtras]

I have the same error +
Trying to access array offset on value of type int [tcpdi_parser.php:940]

I will pay for a fix.

Im on PHP 8.1
// File name : tcpdi_parser.php
// Version : 1.1

[noxtras]

This fixed all my problems:
line 940: if ((!is_array($key)) || ($key[0] == '>>')) {
someone please confirm that i didn't broke something else

[Marchiuzzz]

@noxtras I never actually found a fix but I did figure out a workaround. In my case, this issue doesn't happen every time but with specific PDFs, so I assume they have something corrupt in them that TCPDI can't process. So the solution was to integrate optional PDF parsing by GhostScript, so we pre-process the PDF with GS and then pass this new PDF to the tcpdi, which seems to work 99.99% of the time.