Fix Adobe CS5.5 and Acrobat Not Working on macOS Catalina
Question details
Users are unable to open or use Adobe Creative Suite 5.5 and Acrobat after upgrading their Mac to macOS Catalina.
- Product
- Adobe Creative Suite 5.5 / Acrobat
- Device & OS
- macOS Catalina
- Scenario
- Attempting to launch older Adobe software after updating the Mac operating system to Catalina.
- Observed behavior
- The applications fail to launch or crash immediately because macOS Catalina dropped support for 32-bit applications.
Before proceeding, check if your current Mac applications are 32-bit by clicking the Apple Menu > About This Mac > System Report > Software > Applications.
Upgrade to Adobe Creative Cloud
The officially supported method to restore functionality on macOS Catalina is to upgrade to the latest 64-bit Adobe Creative Cloud applications.
Adobe does not offer a compatible 64-bit update for Creative Suite 5.5. Because macOS Catalina requires 64-bit applications to run, upgrading to a current Creative Cloud subscription is necessary if you wish to remain in the Adobe ecosystem.
Open your web browser and navigate to the official Adobe Creative Cloud plans page.
Choose a subscription plan that includes the updated 64-bit version of Acrobat Pro or the specific Creative Suite applications you need.
Download the Creative Cloud desktop application, sign in, and install the Catalina-compatible versions of your software.
Downgrade to an Older macOS Version
If you prefer not to pay for a subscription and want to keep using CS5.5, you must use an older macOS version that still supports 32-bit apps.
Use WPS Office as a Cost-Effective PDF Alternative on macOS
If Adobe Acrobat CS5.5 is no longer working on macOS Catalina and you want to avoid expensive monthly subscriptions, WPS Office provides a powerful, free, and fully 64-bit compatible PDF toolkit for your Mac.
- 1. Download WPS Office for Mac: Visit the official WPS Office website and download the macOS version, which natively supports 64-bit architecture.
- 2. Install and Launch: Open the downloaded installer package and drag the WPS Office icon to your Applications folder.
- 3. Manage Your PDFs: Open WPS Office, click on the PDF tab, and start reading or editing your existing PDF files without needing a costly subscription.
Frequently Asked Questions
Why did Adobe CS5.5 stop working after the macOS Catalina update?
Adobe CS5.5 is a 32-bit application. Apple completely removed support for 32-bit applications starting with macOS Catalina to improve system security and performance, making older apps incompatible.
Can I download a patch to make Adobe Acrobat CS5.5 64-bit?
No, Adobe does not provide 64-bit patches or updates for older, discontinued software like Creative Suite 5.5. The only 64-bit Adobe solutions are part of their newer Creative Cloud service.
Is it possible to run Adobe CS5.5 on Catalina using a virtual machine?
Yes, you can use virtualization software like Parallels Desktop or VMware Fusion to install an older macOS version (such as Mojave) inside a virtual machine on Catalina, and then run CS5.5 within that environment.
Are there any free alternatives to Adobe Acrobat for Mac users on Catalina?
Yes. If you simply need to view and make basic edits to PDFs, Apple's built-in Preview app is helpful. For more advanced features like document conversion and extensive annotations without a subscription, WPS Office provides excellent free 64-bit compatible tools.
