ImageManagerStatic how to add copyright symbol on image

Question

I am trying to add a copyright symbol onto an image with the ImageManagerStatic in Laravel, but it does not convert the code (©) to the symbol (©)...

Any idea how to do that?

$img = ImgMgr::make($imagepath);
$copyText = '2022 © paulgodard.com';
$img->text($copyText, ($w-0.05*$w), ($h-0.05*$h), function($font) {
    $font->file(5);
    $font->size(60);
    $font->color('#555');
    $font->align('right');
    $font->valign('bottom');
});
$img->encode('jpg');
...