Fix Acrobat DC Crashing on Mac with JavaScript Custom Calculation Scripts
Question details
The user is experiencing repeated crashes in Acrobat DC for Mac when running a PDF document that contains JavaScript in a custom calculation script.

- Product
- Adobe Acrobat DC
- Device & OS
- Mac
- Scenario
- Running, editing, or interacting with a PDF file that utilizes embedded JavaScript for custom form field calculations.
- Observed behavior
- Acrobat DC unexpectedly closes or crashes repeatedly when the JavaScript calculation script is triggered.
Save any unsaved work in other applications and ensure your macOS is updated to the latest version to rule out system-level conflicts.
Update Acrobat DC to the Latest Release
Software defects causing JavaScript execution crashes are often patched in newer releases provided by Adobe.
Adobe frequently releases patches to address memory leaks and software bugs related to script execution on Mac. Installing the latest update is the most reliable way to resolve version-specific defects.
Open Acrobat DC, navigate to the 'Help' menu at the top of the screen, and select 'Check for Updates'.
Follow the on-screen prompts to download and install the latest available patch, then restart Acrobat DC and test your calculation script.

Simplify and Debug the JavaScript Code
Simplifying the script helps identify if a specific syntax error or infinite loop is causing the application to crash.
Downgrade to an Older Stable Release
If the current version of Acrobat DC is inherently bugged on your Mac, rolling back can provide a temporary workaround.
Edit and View PDF Forms Stably with WPS Office
If Acrobat DC continues to crash during critical tasks, try WPS Office. It provides a lightweight, highly stable PDF reader and editor that lets you view, fill, and manage PDF forms smoothly on your Mac without heavy resource consumption.
- 1. Install WPS Office: Download and install WPS Office for Mac from the official website.
- 2. Open your PDF: Launch WPS Office and open your PDF document using the built-in WPS PDF tool.
- 3. Interact safely: Navigate to the 'Form' or 'Fill & Sign' tab to stably interact with your document without triggering unsupported script crashes.

Frequently Asked Questions
Why does JavaScript cause Acrobat to crash on Mac?
JavaScript crashes in Acrobat on Mac are typically caused by software bugs in a specific Acrobat update, memory leaks, or syntax errors like infinite loops within the custom calculation script itself.
Can I disable JavaScript entirely in Acrobat DC?
Yes. Go to Acrobat > Preferences on your Mac, select 'JavaScript' from the categories on the left, and uncheck 'Enable Acrobat JavaScript'. This will stop the crash but disable dynamic form calculations.
Where can I submit Acrobat crash reports to Adobe?
When Acrobat crashes, a crash reporter dialog usually appears where you can fill out the details and click 'Submit'. Alternatively, you can report the bug directly on the Adobe Support community forums with your sample PDF attached.
How can I isolate the problematic script in my PDF?
You can isolate the script by creating a blank PDF, adding a single form field, and pasting snippets of your JavaScript calculation code one by one until the crash reproduces.




