When a student create an Office document file in his computer and save the file with an Hebrew file name and Submits (uploads) the file assignment, And then, when the teacher wants to annotate the student's file assignment she/he can't because the conversion (using "unoconv") from MS(tm) Word to PDF fails. It displays a blank page.
It happens only when the file name in hebrew.

We are using:
CentOS 6.2
unoconv 0.7
platform posix/linux
python 3.5.0 (default, Jul 29 2016, 15:47:40)
[GCC 4.8.2 20140120 (Red Hat 4.8.2-15)]
LibreOffice 5.2.0.4