TKC Sliced Post Helper Wordpress Plugin - Rating, Reviews, Demo & Download
Plugin Description
Help user to split WordPress post/page into multiple pages easier using WPEditor button.
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How to split WordPress post into multiple pages
If the navigation section does not appear, this is probably because your theme is unable to handle the tag for splitting the page. So you need to add the following code in your single.php loop:
<?php wp_link_pages(); ?>