$image = new Imagick('image.jpg'); $image->setImageCompression(50);
$image = new Imagick('image.jpg'); $image->setImageFormat('png'); $image->setImageCompression(90); $image->writeImage('image.png');
$image_files = glob('images/*.{jpg,png,gif}', GLOB_BRACE); foreach ($image_files as $file) { $image = new Imagick($file); $image->setImageCompression(75); $image->writeImage($file); }The package library for Imagick is typically installed as a PHP extension in most web servers. It can be installed using a package manager like apt or yum, or by downloading and compiling the source code manually.