Endpoint Services, Adobe Acrobat Licensing Application Serial Number Error

Using Munki to resolve a known Adobe Acrobat DC licensing error.


Munki Mac Endpoint Management

Affected Customers

University of Illinois IT Pros leveraging Technology Services Endpoint Service Munki Mac Endpoint Management

General Information

With the February 2020 expiration of the Webstore device license for pre-2019 Adobe applications, some Mac users have begun seeing the following message when launching Adobe Acrobat DC:

Adobe Licensing Application Serial Number Error

Clicking 'OK' (the only available option) results in Acrobat DC quitting.


Adobe technical support has provided a resolution, which the EPS team has packaged for deployment via Multi-Tenant Munki.

  • The resolution involves copying an Adobe-provided preference file to /Library/Preferences/com.adobe.acrobat.pro.DC.plist. This file contains a single key, "IsNGLEnforced", set to "true".
  • The MTM package, adobe_acrobat_ala_fix, copies this preference file to the designated location. Add this item as a managed or optional install to the serial number manifest of an affected machine. Note that the installation requires a restart.
  • Because the underlying mechanism for this fix is only fully understood by Adobe support, EPS recommends that you deploy it only to affected machines, not to your entire Mac fleet.

For questions or assistance deploying the fix, contact the EPS team.

Contact the EPS team

Keywords:eps adobe acrobat ala license error serial mtm munki endpoint techs-eps-mtm   Doc ID:100184
Owner:EPS Distribution List .Group:University of Illinois Technology Services
Created:2020-04-07 11:26 CDTUpdated:2020-08-26 10:11 CDT
Sites:University of Illinois Technology Services
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