my friend nook does support Arabic but the problem is that when you
make the font bigger or smaller than (small) it will destroyed the file
or the file will look the same with no different its hard to enplane that in English
but you can understand from the photos
\\\\\\\
this file doesn't change if i change the font size ever
this another file on small font size
but when i change the font size to medium for example it will be like this
////////
sorry about the quality I took these photos by my IPhone
////////
since i lost my usb cable and i don't have one right now i cant check your file
but i will check it for u as soon as i get new cable.
another thing if looking for an PDF's e-reader nook is not the right choice
the pdf reading have to be develop and the screen is small I think Kindle DX
is much better
in reading PDF's file because it have big screen
and if you don't mined if it doesn't have e-ink screen IPad is the best
*sorry about my bad English