

The final say is with the developer and, sadly, CS6/Acrobat Pro XI are unsupported 'old' applications these days. Won't be moving OS until I have to! What makes it worse is that I checked with Apple that Big Sur would run ALL 64-bit applications, but this is NOT the case. Just happy to be back in Mojave with everything working again. I had the same problem with Acrobat Pro XI but if and when I have to move to Big Sur (or later), Readdle's 64-bit PDF Expert for Mac seems to do everything I need. (Substance 3D apps are not included in Creative Cloud All Apps. Get Acrobat Pro, Photoshop, Illustrator, and more plus 20,000 fonts, storage, templates, and tutorials. Students and teachers save over 60 on Illustrator and 20+ Creative Cloud apps. Start free trial Create beautiful vector art and illustrations. I am exploring whether I can use Skylum Luminar, Affinity, or DxO instead. Make anything you can imagine with Creative Cloud All Apps. Adobe Creative Cloud Adobe Illustrator Try Illustrator with a 7-day free trial. As an amateur Photographer (and being retired) I can't justify the CC subscription when CS6 does all, and more, than I need. I had a real problem reverting to Mojave from TimeMachine but got there in the end with telephone support one Sunday from Apple in Dublin. I guess there are 32-bit parts in the Application Libraries or elsewhere. Looking in 'About this Mac' shows Adobe Photoshop CS6 as 64-bit. We will continue to watch this closely.I fell for this too. We've found that many customers are starting to look for PDF alternatives to use in their environment.

The attached article explains how to opt-out of this, but our concern is in the future, this may be a requirement and not an option. In addition to the change, Adobe now requires users who install Adobe Reader 64-bit to create an individual account and login each time they use the software.

More information on this can be found in Adobe's Adobe - 64-bit Unified App Installer article. This also affects PDQ Inventory collections as well. The 64-bit version of Adobe Reader that Adobe provides actually installs Adobe Acrobat (according to the registry and appwiz.cpl) and not Adobe Reader, which makes tracking "Free" vs "Paid" installations of Adobe Acrobat/Adobe Reader (64-bit) incredibly difficult.

Our packaging team has been evaluating a 64-bit Adobe Reader package, though there are issues that may prevent this from being possible.
