How to Fix Acrobat Reader Mobile Crashing When Using Fill & Sign
Question details
The user experiences unexpected app crashes when attempting to use the Fill & Sign tool in Acrobat Reader Mobile.

- Product
- Adobe Acrobat Reader Mobile
- Device & OS
- Android
- Scenario
- Attempting to fill out forms or sign a PDF document using the mobile application.
- Observed behavior
- The application closes unexpectedly or crashes immediately upon opening the Fill & Sign feature.
Ensure your Android device is connected to a stable internet network in case you need to update the app, and note your current Android OS version for troubleshooting.
Isolate the PDF File and Update the App
Determine if the crash is caused by a specific corrupted PDF file or an outdated app version, and clear temporary data.
App crashes can often be isolated to either a corrupted document or a software glitch within the current app version. Testing multiple files helps narrow down the root cause.
Open a different PDF file in Acrobat Reader Mobile and tap the Fill & Sign tool. If it only crashes on the original file, that specific PDF may be corrupted or too complex.
Open the Google Play Store, search for 'Adobe Acrobat Reader', and tap 'Update' if a newer version is available to fix known bugs.
Navigate to your device Settings > Apps > Acrobat > Storage, and tap 'Clear Cache' to remove corrupted temporary files.
Reboot your Android phone or tablet to clear the system memory and resolve temporary background conflicts.

Use WPS Office as a Reliable PDF Alternative
If Acrobat Reader continues to crash, switch to WPS Office. It provides a lightweight, highly compatible PDF reader and editor with a stable Fill & Sign feature that won't weigh down your mobile device.
- 1. Download and install: Get WPS Office from the Google Play Store and open your PDF document within the app.
- 2. Access PDF tools: Tap the 'Tools' icon at the bottom of the screen to view available editing options.
- 3. Use Fill & Sign: Select 'Fill & Sign' or 'PDF Edit' to easily add text, checkmarks, and signatures without experiencing crashes.

Frequently Asked Questions
Why does Acrobat Reader only crash on one specific PDF?
A single PDF may cause crashes if it contains corrupted elements, overly complex interactive forms, or incompatible scripts that the mobile application cannot process properly.
Will clearing the app cache delete my saved PDFs?
No, clearing the app cache only removes temporary background files used to speed up the app. Your downloaded and saved PDF documents will remain safely on your device storage.
How do I find my Android OS version to report the bug?
Go to your Android device Settings, scroll down and tap 'About Phone' or 'About Device', and look for 'Android Version' or 'Software Information' to find your exact OS version.




