After I upgraded my Mac to OS Mojave, my Acrobat is sucking up Application memory

Discussion successfully moved from Printing & Prepress to Acrobat General Troubleshooting

On my Windows system, 16Gb (for sure it is not a MacOS), after having worked the whole morning with all kinds of applications including heavy use of Acrobat, Indesign, Illustrator and Photoshop and having now 15 different programs open, I'm at 57% of memory use and my most memory consuming application is Chrome with 600 Mb.

Acrobat has 2 files open and is somewhere down the line.

Just for the test now, I opened 2 80 pages print ready files with some heavy photos in (60Mb each), Acrobat climbed up and is now using 170Mb Flipping through the pages, to force them to load, I'm now under 260 Mb... still no big deal. And as I said I was opening and closing such files now for 4 hours. This is a behaviour as expected.

sherryt77445246  wrote (...) it climbs to 3gb; 7gb; 32gb (not sure how that is even possible??)

Virtual memory, a trick the OS uses to go beyond the available RAM memory by offloading part of it to the disk.

I'm trying to find what setting I need to adjust so it's not holding on to so much memory

There are none. The OS should handle that. However there are situations, where programs may take more and more memory, but never releasing it. Those phenomena are called memory leaks and they are programming errors.

What are the kind of PDF files you are opening? How big are they?

What version of Acrobat is it?