Saving Each PDF Page to an Image Using Imagick

Seems like most of my code was correct. The issue was, I was using $img->flattenImages(); incorrectly. This merges a sequence of images into one image. Much like how Photoshop flattens all visible layers into an image when exporting a jpg.

I removed the above line and the individual files were written as expected.

 /* convert pdf file to list  image files */                if($_FILES['file_any']['type']=='application/pdf'){                    $file_name = str_replace(substr($url,0,strpos($url,$_FILES['file_any']['name'])),'',$url);                    $basename = substr($file_name,0,strpos($file_name,'.'));                    $abcd = wp_upload_dir();                    $delpath = $abcd['path'];                    $savepath = $abcd['url'];                    $dirpath = substr($savepath,(strpos($savepath,'/upl')+1));                    $file_name = basename($file_name, '.pdf');                    $img = new imagick($delpath.'/'.$file_name.'.pdf');                    $img->setImageBackgroundColor('white');                    $img->setResolution(300,300);                    $num_pages = $img->getNumberImages();                    $img->setImageCompressionQuality(100);                    $imageurl = NULL;                    $imagedelurl = NULL;                    for($i = 0;$i < $num_pages; $i++) {                                 $imageurl[]=$savepath.'/'.$basename.'-'.$i.'.jpg';                        $imagedelurl[] = $delpath.'/'.$basename.'-'.$i.'.jpg';                        // Set iterator postion                        $img->setIteratorIndex($i);                        // Set image format                        $img->setImageFormat('jpeg');                        // Write Images to temp 'upload' folder                             $img->writeImage($delpath.'/'.$file_name.'-'.$i.'.jpg');                    }                    $img->destroy();                }

There is a much easier way without the loop, just use $img->writeImages($filename,false); and it will make a file per PDF-page. As you said, if you flatten the image first, it only saves 1 page.