Text pre-extraction in AEM is very useful and highly recommended for
re/indexing Lucene indexes on repositories with large binaries that
contain extractable text (eg. PDFs, Word Docs, PPTs, TXT, etc.). Running
re-indexing directly on lucene indexes is very expensive and may cause
performance issues. After completing this tutorial you will be able to
understand:- Text pre-extraction overview.When to use text
pre-extraction in AEM.When not to use text pre-extraction in
AEM.Prerequisites for using ...