I have the same problem with CS3 and it is a disaster. I also have CC 2018, but I need to prepare a large document and then send it on to someone else to finish. I do this six time a year. That person only has CS3. You can't save a CC 2018 file as a CS3 document, which is really hateful. So if you can't use CS3 with High Sierra, I don't know what I am going to do. Will they put out a bug fix in High Sierra? Or do I have to figure out how to downgrade my computer back to an earlier OS? Obviously, I can't go to the other person's office and insist that *they* upgrade to CC 2018, so that kind of answer is really pretty obnoxious, Prateek Gaurav.
I have the same problem with CS3 and it is a disaster. I also have CC 2018, but I need to prepare a large document and then send it on to someone else to finish. I do this six time a year. That person only has CS3. You can't save a CC 2018 file as a CS3 document, which is really hateful. So if you can't use CS3 with High Sierra, I don't know what I am going to do. Will they put out a bug fix in High Sierra? Or do I have to figure out how to downgrade my computer back to an earlier OS? Obviously, I can't go to the other person's office and insist that *they* upgrade to CC 2018, so that kind of answer is really pretty obnoxious, Prateek Gaurav.