On Wed, 16 May 2012, Alec Swan wrote:
Our tests indicate that while Tika can extract text from average files it fails to extract text from large files of certain types. In our tests Tika extracted 0 characters from 100 MB PPTX, 60 MB DOCX and 113 MB PDF files. However, it extracted the right text from 94MB TXT file.
Are you running out of memory? PPT/PPTX, DOC/DOCX and PDF are all formats which can only be parsed by building a DOM-like structure in memory, so they need more memory available to them. XLS/XLSX, amongst a few others, can be done in a largely streaming manner, so have a lower footprint. (It all depends on how the file format is laid out internally)
Nick
