This module provide an efficent search index, also with pdf/doc files (require poppler-utils and wv). Optionally you can activate a PHP class for handling pdfs instead of poppler. Now supporting repeaters fields.
Processwire site Indexer v 0.8.0
Provide a simple site indexer for processwire pages. -- Now Supporting Page Fields! -- Support for Repeater Fields -- Automatic text extraction from all fields. -- Text extraction from .pdf an .doc files ( require poppler-utils and vw, pure PHP class only for PDFs ). -- English / Italian stopwords feature.