This bug has been reported here: https://bugs.launchpad.net/ubuntu/+source/poppler/+bug/151608 "evince on gutsy does not correctly read arabic pdf files. it does open it, but most of the text is hidden (white) and misplaced. the same pdf is correctly read on the feisty live CD. (Evince 0.8.1)" http://launchpadlibrarian.net/9946313/1.pdf
Can only reproduce it with the cairo backend
It's should be fixed now. Thanks for reporting.
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