loadPdf requires imagick extension.
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<b>Fatal error</b>:  Uncaught Exception: loadPdf requires imagick extension. in /home/caferoyma/public_html/mypymes/post_printer_server/vendor/mike42/escpos-php/src/Mike42/Escpos/ImagickEscposImage.php:217
Stack trace:
#0 /home/caferoyma/public_html/mypymes/post_printer_server/vendor/mike42/escpos-php/example/print-from-pdf.php(44): Mike42\Escpos\ImagickEscposImage::loadPdf('resources/docum...', 260)
#1 {main}
  thrown in <b>/home/caferoyma/public_html/mypymes/post_printer_server/vendor/mike42/escpos-php/src/Mike42/Escpos/ImagickEscposImage.php</b> on line <b>217</b><br />
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<b>Notice</b>:  Print connector was not finalized. Did you forget to close the printer? in <b>/home/caferoyma/public_html/mypymes/post_printer_server/vendor/mike42/escpos-php/src/Mike42/Escpos/PrintConnectors/FilePrintConnector.php</b> on line <b>44</b><br />