osb/config/snappy.php

<?php

return [
    'pdf' => array(
        'enabled' => true,
        'binary'  => '/usr/local/bin/wkhtmltopdf',
        'timeout' => false,
        'options' => array('print-media-type' => true),
        'env'     => array(),
    ),

    'image' => array(
        'enabled' => false,
        'binary'  => '/usr/local/bin/wkhtmltoimage',
        'timeout' => false,
        'options' => array(),
        'env'     => array(),
    ),
];