Fix Adobe Acrobat Case-Sensitive Volume Installation Error on Mac
Question details
Users attempting to install Adobe Acrobat on macOS to use scanner and OCR functionalities are blocked by an installation error due to their hard drive formatting.
- Product
- Adobe Acrobat Pro DC
- Device & OS
- macOS
- Scenario
- Installing Adobe Acrobat on a Mac to handle PDF scanning and OCR after purchasing a new document scanner.
- Observed behavior
- The installer halts and displays the error message: "Sorry, installation failed. Installation on case-sensitive volumes is not supported."
Before modifying any disk partitions, open the built-in Disk Utility on your Mac to verify your current drive format and ensure all critical files are fully backed up using Time Machine.
Create a Case-Insensitive APFS Volume (Recommended)
Add a new, case-insensitive volume to your Mac's existing container. This allows you to install Adobe Acrobat without needing to wipe your entire hard drive.
Modern Macs use the APFS file system, which allows multiple volumes to dynamically share free space. By creating a standard (case-insensitive) APFS volume alongside your main system volume, you can install Adobe applications safely and quickly.
Go to Applications > Utilities and launch Disk Utility on your Mac.
In the left sidebar, select your main APFS Container (usually named Container disk1 or similar, located just below your physical drive).
Click the '+' (Add Volume) button in the top toolbar.
Name the new volume (e.g., 'Adobe Apps') and ensure the Format is set to 'APFS' (Do NOT choose APFS Case-sensitive). Click Add.
Run the Adobe Acrobat Pro DC installer again. When prompted to select an installation destination, choose the newly created 'Adobe Apps' volume.
Reformat the Entire Drive (Full System Reset)
If you require your entire macOS system to run on a standard case-insensitive file system (the factory default), you will need to completely erase the drive and reinstall macOS.
Use WPS PDF for Seamless OCR and Scanning on macOS
Bypass Adobe's strict case-sensitive installation errors entirely. WPS Office includes a fast, fully-featured PDF editor for Mac that effortlessly handles document scanning, editing, and advanced OCR tasks regardless of your volume format.
- 1. Install WPS Office for Mac: Download the WPS Office installer from the official website and move the application to your Mac's Applications folder.
- 2. Open the PDF Toolset: Launch WPS Office and click on the 'PDF' tab from the main workspace to access all PDF features.
- 3. Scan or Perform OCR: Open a scanned PDF document, navigate to the 'Tools' menu, and select 'OCR' to instantly extract or edit the text.
Frequently Asked Questions
Why does Adobe Acrobat fail to install on case-sensitive volumes?
Adobe's legacy file architecture relies heavily on case-insensitive paths (the default for macOS). Running it on a case-sensitive file system causes the software to look for files with the wrong capitalization, leading to fatal crashes. As a result, Adobe blocks installation on these drives to prevent software failure.
How do I check if my Mac's hard drive is case-sensitive?
Open 'Disk Utility' from your Utilities folder, select your main hard drive on the left, and check the 'Format' description below the drive's name on the right panel. If it says 'APFS (Case-sensitive)' or 'Mac OS Extended (Case-sensitive)', your drive uses a case-sensitive format.
Will my scanner work with Adobe Acrobat once the volume issue is fixed?
Yes. Once Adobe Acrobat Pro DC is installed on a compatible case-insensitive volume, it will fully recognize connected scanners (such as Brother or HP models) using native Mac drivers and allow you to perform built-in OCR.
Can I convert my existing Mac volume to case-insensitive without erasing data?
No, macOS does not allow you to change the case-sensitivity of an existing volume without erasing it. However, the APFS file system allows you to easily create a new case-insensitive volume alongside your current one, which shares the same free space and avoids data loss.
