1
SearchWP Included
Indexes PDF and Office document content from the Standard plan; Xpdf integration available.
95feature score
WordPress Search Plugins with PDF & document search
Indexes the content of PDFs and office documents. 4 of the 8 plugins we track include it.
2
Ajax Search Lite Paid version Pro
Pro indexes PDF and Office contents with the index table, via local parsers or the Media Service.
84feature score
3
Relevanssi Paid version Premium
Text-based PDFs, Office, ODT, RTF and ePub via an external extraction service; no OCR.
82feature score
4
ElasticPress Included
Documents feature indexes PDF, Office, TXT and CSV file contents.
88feature score