How to Fix Adobe CS4 Licensing Error 150:30 on New Mac
Question details
The user needs to resolve licensing error 150:30 and launch failures that occur after moving Adobe CS4 applications to a new Mac.

- Product
- Adobe Acrobat CS4 and Photoshop CS4
- Device & OS
- macOS Mojave
- Scenario
- Transferring legacy Adobe CS4 software from an older Mac to a newer Mac operating system.
- Observed behavior
- The applications fail to install or launch correctly, instead displaying licensing error 150:30.
Verify the exact version of your macOS by clicking the Apple menu and selecting 'About This Mac' before attempting to reinstall legacy 32-bit applications, as compatibility varies drastically on newer systems.
Use an Older Mac for Legacy CS4 Software
Since CS4 applications are incompatible with newer macOS versions, maintaining an older machine is the most reliable way to run them.
Adobe CS4 is a legacy 32-bit software suite that was not designed for modern macOS architectures. When migrated to newer systems like macOS Mojave, the licensing services fail to initialize properly, resulting in error 150:30.
Keep the older Mac where CS4 was originally installed and activated. Older macOS versions fully support the 32-bit architecture and legacy licensing services required by CS4.
Do not use Apple's Migration Assistant to move CS4 to a new Mac. The utility often fails to transfer hidden system-level licensing files, which triggers error 150:30 on the destination machine.

Upgrade to Modern macOS-Compatible Alternatives
Replace your outdated CS4 applications with modern software that is fully compatible with your new Mac and macOS Mojave or later.
Edit PDFs on Your New Mac with WPS Office
If Adobe Acrobat CS4 no longer runs on your modern Mac, WPS Office provides a lightweight, free alternative. It includes a powerful PDF editor alongside Word, Excel, and PowerPoint alternatives, fully compatible with macOS Mojave and later.
- 1. Download WPS Office: Visit the official WPS website and download the Mac version installer.
- 2. Install the Application: Open the downloaded package and drag WPS Office to your Applications folder.
- 3. Open and Edit PDFs: Launch WPS Office and open your existing PDF documents to read, annotate, or edit them instantly.

Frequently Asked Questions
Why does Adobe CS4 show licensing error 150:30 after using Migration Assistant?
Migration Assistant copies the application files but often fails to properly transfer the hidden licensing and activation data stored in root-level library folders, causing the software's DRM to trigger error 150:30 on the new machine.
Can I fix Adobe error 150:30 by reinstalling CS4 on macOS Mojave?
Reinstalling might fix the licensing error temporarily, but the CS4 installer itself is 32-bit and may fail to run on Mojave. Even if installed, CS4 applications are highly unstable on newer macOS versions.
Is there a way to run 32-bit apps like Adobe CS4 on a new Mac?
If your new Mac is running macOS Mojave (10.14), you can technically still run 32-bit apps, though with warnings and glitches. If your Mac runs macOS Catalina (10.15) or later, 32-bit apps are completely blocked. Using a virtual machine running an older macOS is the only workaround.




