Arabic support is still available in Illustrator's latest versions. Perhaps you have updated your Illustrator recently and for some reason the Right-to-Left features disappeared.
Just uninstall Illustrator using Adobe Creative Cloud application on your desktop, and don't foreget to hit the "Remove" button while uninstlling so the Preferences will also be wiped out.
Once the Illustrator is uninstalled, you may follow below steps to re-install a Middle Eastern version.
Important: Uninstall first before you follow below steps.
- From the Adobe Creative Cloud Desktop menu, click on All Apps to view a list of installed Adobe applications
- Click the three ellipses shown beside each installed application
- Choose Uninstall to remove the non-Arabic application and remove Preferences when prompted
- Once ALL existing applications have been uninstalled/removed successfully, click on the “Account” icon found on the top-right corner of the Creative Cloud desktop application and choose “Preferences”
5. In the newly opened Preferences dialogue window, click on “Apps” on the left pane
6. Scroll down to the bottom of the window, from the “Default install Language” drop menu choose English يدعم العربية in order to have Arabic support in Adobe applications, then click the “Done” button.
Now you can install a fresh copy of Illustrator Middle East that supports RTL fully.