I notice that there is a directory:
C:\Program Files\Wolfram Research\Mathematica\10.2\SystemFiles\Converters\Java. What is this? I could not find any documentation either on the Wolfram site or via Google.
Also, as long as we are looking at this directory, is there documentation on using Tesseract (which is also in the directory)? I assume this is a reference to the Tesseract OCR engine, but could find no documentation of any related Mathematica functionality.