Reply To: Arabic Text in inDesign.. How to?

Have a search around for “World Ready Paragraph Composer” or even just “Arabic” on this website and elsewhere on the web.
Technically speaking, you’ll probably need a plugin (World Tools from In-Tools, or ScribeDOOR from Winsoft International.
Otherwise, get someone with some understanding of Arabic to make sure what you’re doing is right, notably character joining, dealing with non-Arabic words within the Arabic text, and flipping page direction, page layout and story direction for a right-to-left audience. There’s a lot to learn, but it’s not impossible.
Good luck
Chris