I have "Office/PDF documents" checked in options, under "Enhanced Document Searching"
Primary search method failed, raw data search used. Loading stream into filter failed. 0x8004170c (0x0) - :30
Unable to search file. Retrieving compressed document part failed - Additional: Loading next interpreter for compressed doc failed. 0x80040203 (0x0) - :274
Win7x64 latest Agent Ransack build (it also was failing in the older version I was using a few minutes ago.)