I was using InDesign CS4. It worked perfectly all the way up to yesterday morning using Sierra. I upgraded to High Sierra midmorning and it no longer works. My problem is that the folks I worked for for 18 years (I retired in 2012) come back to me every so often to update the publications I did for them. At the moment I am updating a 200 page book. It is, in fact, off at the proofreaders. Once it comes back to me I need to make whatever corrections they ask for and then update the index. I obviously can't do a blasted thing now and am in total panic mode. I called Adobe last night and the Adobe rep suggested I downloaded CS6. He said I should be able to download, use it as a trial, and pay for it as an upgrade. He said it might work since it's something like the last version before the subscription. From this forum, it looks like CS6 will work. I couldn't download it, though; it said I needed to download Adobe Support Supervisor, which is no longer available. Today Adobe told me of course I'm not allowed to do that. Anybody have any solutions? I finally broke down and started to cry. I need to open that job or I am so screwed. And no, since i'm basically retired I do not want a monthly subscription.