Until the last windows 10 update I was able to convert pdf files to images with ImageMagick. This sample code did the work.
$imagick = new Imagick();
$imagick->readImage($_SERVER['DOCUMENT_ROOT'].'/111/1.pdf');
Now, not only it's not working but I don't even get a php error. The browser simply shows a "This site can’t be reached" error.
If i try to read an image and not a pdf file it's working fine.
php version is 7.2.13 phpinfo() shows that imagick is configured correctly (including the pdf extension)