In other words, Illustrator and InDesign are just not High Sierra compatible for the moment. Upgrading to the Apple File System breaks a lot of functions - there's no workaround for problems caused by it so far.Īs for Adobe InDesign, the cursor shows up as a pixelated box - an annoying problem with no fix so far.Īdobe is aware of the issues customers are facing and is working on an update to fix it. How bad is it? Apparently with Illustrator, the app is having problems launching, opening files and creating documents as well as a myriad of other issues including brushes rendering, colour management and other errors. It's usually a good bet to check whether your current apps are compatible before upgrading/updating your OS, but the Adobe Illustrator and InDesign issues are bad enough that designers who rely on those two apps should (really) wait awhile.