Sloučit soubory PPTX dohromady v PHP

<?php
require_once("http://localhost:8080/JavaBridge/java/Java.inc");
require_once("lib/aspose.slides.php");
 
use aspose\slides\Presentation;
use aspose\slides\SaveFormat;
 
$pres1 = new Presentation("document1.pptx");
$pres2 = new Presentation("document2.pptx");
try
{
    for ($i = 0; $i < java_values($pres2->getSlides()->size()); $i++) 
    {
        $pres1->getSlides()->addClone($pres2->getSlides()->get_Item($i));
    }

    $pres1->save("merged.pptx", SaveFormat::Pptx);
}
finally
{
    if ($pres1 != null) $pres1->dispose();
    if ($pres2 != null) $pres2->dispose();
}
?>