How to Fix Acrobat Reader Mobile App Crashing on iPhone
Question details
The user needs to resolve an issue where the Acrobat Reader mobile app closes immediately upon launch on an iPhone, preventing access to cloud files.

- Product
- Adobe Acrobat Reader Mobile
- Device & OS
- iPhone / iOS
- Scenario
- Opening the app to access cloud files or utilize app features on an iOS device.
- Observed behavior
- The app crashes immediately upon launching. Reinstalling does not fix the issue. Previously saved local files open successfully, but cloud files and other app features are inaccessible.
Ensure your iPhone is connected to a stable Wi-Fi network and has sufficient battery life before performing any system or app updates.
Restart Device and Install the Latest Updates
Apply the official fix released by the developer by restarting your iPhone and ensuring both the app and iOS are up to date.
The developer has confirmed a known bug causing the mobile application to crash on iOS and iPadOS. A fix has been deployed to resolve the cloud access and startup issues.
Press and hold the volume button and the side button until the power-off slider appears. Drag the slider, wait 30 seconds for your device to turn off, and then turn it back on.
Open the App Store on your iPhone, tap your profile icon at the top right, and scroll down to check for available updates. Tap 'Update' next to your PDF reader application to install the latest patch.
Navigate to Settings > General > Software Update on your iPhone to check if a new iOS or iPadOS version is available. If an update is pending, tap 'Download and Install'.
Once all updates are installed and your phone has restarted, open the app again to verify that you can access your cloud files without it crashing.

Read and Manage Cloud PDFs Seamlessly with WPS Office
If you are experiencing ongoing crashes with other PDF apps, WPS Office provides a stable, built-in PDF reader for iOS. You can easily open local files, sync with cloud storage, and read your documents without interruption.
- 1. Download WPS Office: Get WPS Office from the Apple App Store and launch the application on your iPhone.
- 2. Access your cloud files: Tap the 'Files' tab at the bottom of the screen to browse your local documents or connect to your preferred cloud drive to retrieve your files.
- 3. Read and annotate PDFs: Tap any PDF file to open it instantly. Use the bottom toolbar to access reliable reading modes, annotation tools, and quick sharing options.

Frequently Asked Questions
Why does my mobile PDF reader keep crashing on my iPhone?
App crashes are often caused by software bugs, compatibility issues with a new iOS update, or corrupted app cache. Developers frequently release patches, so keeping your app and device updated is the best preventative measure.
Will I lose my cloud files if I reinstall a crashing app?
No, your cloud files are stored securely on remote servers, not locally on the app itself. As long as you log back in with the same account credentials after reinstalling, your cloud files will remain fully accessible.
Can I use another app to open my PDFs if my main reader isn't working?
Yes, iOS has built-in preview tools for basic reading. For advanced viewing and editing, you can use powerful third-party alternatives like WPS Office, which natively supports PDF viewing, editing, and cloud synchronization.




