WP Document Revisions Integration
Integrate SearchWP with WP Document Revisions, a popular plugin used by many to help keep track of documents within their WordPress install. Using this WP Document Revisions Integration, SearchWP will properly parse and index the content from the latest revision of a Document so as to make it searchable.
This extension also needs SearchWP Plugin. As to use this extension, you need to first install SearchWP Plugin.