On both Mac and PC, the system wide location for PDF settings (.joboptions) does not work anymore.
/Library/Application Support/Adobe/Adobe PDF/Settings (on a Mac)
It is illogical to remove this feature. Even if that folder does not store the main default presets, which are now stored in each application, it still needs to be looked at and loaded from. It's actually illogical to store the same preset in multiple locations (i.e. each application). If there is a preset that is only for a certain application (e.g. Illustrator Default), this could be put in the application folder, but all others like High Quality, Prepress, PDF/X should be in a central location, i.e. where they used to be.
I know that each user can manually load into their own PDF presets, which then do appear in all suite apps, but this has to be done every time a new user logs into a computer.
The central location meant that all suite apps would see a custom set of presets automatically across the entire suite and across multiple versions of the suite. The other advantage to the central location is that the presets would appear in square brackets, in other words read only, so they cannot be changed by the user without saving as a new file.
Having users manually load and be able to change the presets kind of defeats the purpose of having a preset, certainly in our environment, where we need these settings to be consistent across all apps, all computers and all users.
Please put this feature back or at least honour the central location that used to be used.