How to Fix Adobe Acrobat Crashing When Changing Highlight Color
Question details
The user experiences sudden application crashes when attempting to change the color of highlight or underline annotations in a PDF file.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Modifying the color of existing highlights or underlines while reviewing and annotating a PDF document.
- Observed behavior
- The PDF reader unexpectedly closes or crashes completely whenever the annotation color palette is accessed or a new color is applied.
Ensure your device has a stable internet connection to download necessary software updates, and save any other open documents to prevent data loss.
Update Adobe Acrobat and Device Operating System
Keeping your application and operating system fully updated resolves known compatibility bugs that cause unexpected crashes during annotation.
Software crashes often occur when an outdated version of a PDF reader interacts poorly with a newer device operating system. Updating both ensures optimal compatibility and stability.
Open the App Store on your iOS device or the Google Play Store on your Android device. If you are on a desktop, open the application and navigate to the Help menu.
Search for Adobe Acrobat in the store. If an update is available, tap the Update button to install the latest version.
Navigate to your device Settings, select System or General, and check for Software Updates. Install any pending operating system updates.
Restart your device to apply all changes. Open the PDF again and attempt to change the highlight color to see if the crash is resolved.

Isolate Document-Specific Issues
Testing multiple documents helps determine if the crash is caused by a corrupted specific PDF file rather than the application itself.
Edit and Annotate PDFs Without Crashing Using WPS Office
If your current PDF reader continues to crash, WPS Office provides a stable, lightweight, and free alternative for viewing, editing, and annotating PDF documents. Enjoy seamless highlighting, underlining, and color adjustments without performance issues.

Frequently Asked Questions
Why does changing a highlight color crash my PDF reader?
Crashes typically happen due to application bugs, outdated operating systems, insufficient device memory, or a corrupted PDF file that triggers a compatibility error when rendering new visual elements.
How can I change highlight colors in a PDF if my app keeps crashing?
You can use an alternative PDF editor like WPS Office. Open your PDF in WPS, select the highlight tool from the Comment or Annotate tab, and pick your preferred color from the palette to bypass the crashing issue.
Does a large PDF file cause annotation tools to crash?
Yes, exceptionally large PDFs with complex formatting or hundreds of existing annotations can overload the application's memory allocation on mobile devices, leading to unexpected crashes when modifying colors.




