Generating Thumbnails for .ppt and .pptx in PHP

Question

Is it possible to generate thumbnails for .PPT and .PPTX files using PHP? I am currently doing the same for images and pdf files but hitting walls when it comes to power point presentations.

I am currently using Imagick for the PDF using the code below.

        if(in_array($ext,array('pdf'))){

                $pdf = './uploads/'.$new_file_name; 
                $filename=str_replace($ext,'jpg',$new_file_name);
                $img = new imagick($pdf);               
                for ($x = 1;$x <= $img->getNumberImages(); $x++) {      
                    $save_to = './uploads/'.$x.'-'.$filename;
                    $img->setIteratorIndex($x);
                    $img->setImageFormat('jpg');                
                    $geo=$img->getImageGeometry();
                    $sizex=$geo['width'] / 2;
                    $sizey=$geo['height'] / 2; 
                    $img->resizeImage($sizex,$sizey,Imagick::FILTER_LANCZOS,1);
                    $img->writeImage($save_to);
                }
                $count = $img->getNumberImages();
                $update = '[pdf=/uploads/'.$new_file_name.']/uploads/'.$count.'-'.$filename.'[/pdf]'.$update;
            }   

Answer 1

No.

Or at least almost certainly not. You could call \Imagick::queryformats(); to list the formats that Imagick, or rather ImageMagick, supports to double-check that PowerPoint formats are not supported, but as they aren't listed as supported then I doubt they will be.

It seems one of the best ways to do achieve the same thing is to use unoconv to convert the PowerPoint file to PDF first:

unoconv -f pdf presentation.ppt

After that you would be able to manipulate it with Imagick.