At the core, it is a library that extracts text from various document formats (PDF, xlsx, docx, pptx, etc.). It is important to note, however, that Tika in its

At the core, it is a library that extracts text from various document formats (PDF, xlsx, docx, pptx, etc.). It is important to note, however, that Tika in itself doesn't implement the text extractors, but rather combines different different projects (e.g., Apache POI) into one simple interface "getText". If you are performance-oriented, thought, you may find that you will find yourself using the individual parsers as you'd want different settings/options to maximize throughput.