Replace pdf page number

<script>
    $(document).ready(function () {
        var $anchor = $('a');
        $anchor.each(function () {
            var href = $(this).attr('href');
            if (href) {
                if (href.indexOf('.pdf#page=') > -1) {
                    var newhref = href.replace('.pdf#page=', '.pdf#page');
                    $(this).attr('href', newhref);
                }
            }
            
        });
    });
</script>