$powerpnt = new COM("powerpoint.application") or die("Unable to instantiate Powerpoint");

$presentation = $powerpnt->Presentations->Open(realpath($file), false, false, false) or die("Unable to open presentation");

foreach($presentation->Slides as $slide)

{

    $slideName = "Slide_" . $slide->SlideNumber;

    $exportFolder = realpath($uploadsFolder);

    $slide->Export($exportFolder."\\".$slideName.".jpg", "jpg", "600", "400");

}

$powerpnt->quit();

Convert PPT to jpeg

file

PHP