Open Source Java Text Parsers

Question

Is there a single Java text parser which can be used to parse Office (windows) documents, OpenOffice documents, and PDFs as well? Else do I need to use something like Apache POI for Word documents and other libraries for OpenOffice and PDFs? If so what are the best options for OpenOffice and PDFs?

Answer 1

If the task is reading PDF documents, iText is your best bet. For Microsoft Office and OpenOffice (LibreOffice) based documents, POI would be my solution.

Answer 2

Apache Tika :

The Apache Tika™ toolkit detects and extracts metadata and structured text content from various documents using existing parser libraries.

Not sure whether this qualifies as "single" for your purposes.