The offered link takes you to link to download cr4e-all-in-one-win_2.0.17.zip which means 12.0.18 is not offered by the link. The release notes have no fixes offered for PDF export of Arabic.
Is version 18 available soon? I have raised a paid support case, as this issue needs urgent attention.
Even a simple Arabic text literal put onto a report is reversed despite having right to left reading order and a Unicode font chosen.
Any more suggestions gratefully received.