Fix Adobe Acrobat Reader Crashing When Using PDF Commenting Tools
Question details
Adobe Acrobat Reader crashes on Android devices when attempting to use PDF commenting tools such as highlighting and strikethrough.

- Product
- Adobe Acrobat Reader
- Device & OS
- Android
- Scenario
- Trying to highlight, add strikethrough, or apply comments to a PDF document after updating the application.
- Observed behavior
- The application force closes or crashes immediately upon selecting or applying commenting tools, and restarting the app or device does not resolve the issue.
Ensure your Android tablet is connected to the internet to check for available updates in the Google Play Store, and take note of your device's current system language settings.
Change Your Android Device Locale to a Supported Language
Since the crash is caused by a known bug related to unsupported locales, temporarily changing your device language to English (or another major supported language) serves as an effective workaround.
Adobe has confirmed that certain regional languages and locales may conflict with the commenting modules in recent updates. Switching your system language bypasses this conflict until an official patch is released.
Navigate to your Android device's main 'Settings' app.
Scroll down and tap on 'System', then select 'Languages & input' (this may vary slightly depending on your Android manufacturer).
Tap on 'Languages', then 'Add a language'. Select 'English (United States)' or another widely supported locale, and drag it to the very top of the list to set it as the primary system language.
Force close Adobe Acrobat Reader from your recent apps list and reopen it. Try using the commenting tools again.

Update Adobe Acrobat Reader via Google Play Store
Installing the latest version of the app ensures you have the newest bug fixes and patches deployed by Adobe's development team.
Report Device Details to Adobe Support
If updating and changing the locale do not fix the problem, reporting your specific device model and language helps Adobe investigate the root cause.
Use WPS Office to Add PDF Comments and Highlights on Android
If your current PDF reader keeps crashing due to system language conflicts, seamlessly highlight, annotate, and edit your PDF documents using WPS Office. It provides stable, localized performance across all Android devices without the risk of locale-based crashes.
- 1. Install WPS Office: Download and launch WPS Office from the Google Play Store on your Android device.
- 2. Open Your PDF: Navigate to your files and open the target PDF document within WPS Office.
- 3. Access PDF Tools: Tap the 'Tools' menu at the bottom of the screen and navigate to the 'Annotation' or 'Edit' tab.
- 4. Highlight and Comment: Select the 'Highlight', 'Strikethrough', or 'Text Box' tools to seamlessly add your comments without unexpected crashes.

Frequently Asked Questions
Why does Adobe Acrobat Reader crash only when I highlight text?
The crash is often triggered by a known software bug where the application's commenting modules fail to recognize or process specific device locales and regional languages, leading to an immediate force close.
Which languages are fully supported by Adobe Acrobat Reader?
Adobe officially supports most major global languages such as English, Spanish, French, and German. However, some specific regional locales might not be fully mapped in recent updates, causing unexpected app closures when using certain tools.
Can I recover my PDF edits if the app crashed?
Unless the document was synchronized to Adobe Document Cloud or successfully saved locally right before the crash occurred, recent unsaved highlights or comments are typically lost.
How do I change the locale on my Android tablet?
You can modify your locale by navigating to your device's Settings, selecting 'System', then tapping 'Languages & input'. From there, you can add a widely supported language like English (US) and drag it to the top of the list to set it as primary.




