pdf/book-page-footer.html (18 lines of code) (raw):
<!doctype html>
<html>
<head>
<link rel="stylesheet" href="styles.css">
<script src="utils.js"></script>
<script>
window.addEventListener('load', function() {
var params = utils.getParams();
utils.$('.js-footer-current-page-num').innerHTML = params['page'];
}, false);
</script>
</head>
<body>
<div class="book-footer">
<div class="book-footer-current-page-num js-footer-current-page-num"></div>
</div>
</body>
</html>