footer image issue

[Silassiai]

I created this footer image:

$footer = $section->addFooter();
        $footer->addImage('img/footer.jpg', [
            'height' => 24,
            'marginBottom'     => -1,
            'marginLeft'    => -1,
            'wrappingStyle' => 'behind'
        ]);

Which looks like:

And should look like:

Is this possible? And how?