Fix Acrobat X Pro Not Compatible with macOS Catalina
Question details
The user is unable to launch Adobe Acrobat X Pro after upgrading to macOS Catalina and is looking for a way to view and edit PDFs without having to purchase a new application subscription.

- Product
- Adobe Acrobat X Pro
- Device & OS
- macOS 10.15.5 Catalina
- Scenario
- Attempting to open or edit PDF files using an older, pre-purchased version of Adobe Acrobat on a recently updated Mac.
- Observed behavior
- An update-required error message appears, and Acrobat X Pro refuses to launch because the Catalina operating system has completely dropped support for 32-bit applications.
Before exploring system workarounds or software alternatives, check the Apple menu to confirm your exact macOS version and ensure your important PDF documents are safely backed up to an external drive.
Use Apple Preview for Basic PDF Viewing
Leverage the native Preview application built into macOS to view and perform basic annotations on PDF files without spending money.
If you only need to read documents, highlight text, or fill out basic forms, macOS already has a built-in 64-bit tool that works perfectly on Catalina and beyond.
Open Finder and navigate to the folder containing the PDF document you want to open.
Right-click (or Control-click) the file, hover over 'Open With' in the context menu, and select 'Preview'.
Use the Markup Toolbar in Preview to highlight text, add shapes, or insert your signature, then go to 'File' and select 'Save'.

Downgrade macOS to Version 10.14 (Mojave)
Revert your operating system to an older version that retains 32-bit application support, allowing Acrobat X Pro to run natively.
Run Acrobat X Pro in a Virtual Machine
Use virtualization software to run an older version of macOS or Windows inside Catalina specifically for accessing Acrobat X Pro.
A Powerful and Free PDF Alternative for macOS Catalina
Instead of paying for a costly Adobe Acrobat upgrade or erasing your hard drive to downgrade macOS, switch to WPS Office. It provides a comprehensive, native 64-bit PDF toolkit that fully supports macOS Catalina and newer operating systems for free.
- 1. Download the Mac version: Visit the official WPS Office website and download the free installer specifically designed for macOS.
- 2. Install the suite: Open the downloaded .dmg file and drag the WPS Office application icon into your Applications folder.
- 3. Open your PDF: Launch WPS Office, click on the dedicated 'PDF' tab on the home screen, and open your file to start reading and editing.

Frequently Asked Questions
Why did Acrobat X Pro stop working immediately after I updated to macOS Catalina?
macOS Catalina (version 10.15) entirely dropped support for 32-bit applications. Because Acrobat X Pro is older software built on a 32-bit architecture, the new operating system is fundamentally unable to launch or process the application.
Can I upgrade my Acrobat X Pro to a 64-bit version for free?
No. Acrobat X Pro reached its end-of-life status years ago and does not qualify for free upgrades to modern software. You would need to purchase a completely new subscription for Adobe Acrobat Pro DC to get a 64-bit version.
Are there any free native Mac applications that can replace basic Acrobat features?
Yes, Apple's built-in Preview app can handle basic PDF viewing, highlighting, form filling, and signing natively on macOS Catalina. For more advanced features without a subscription, suites like WPS Office offer excellent built-in PDF toolkits.




