How to Fix Acrobat Sign App Crashing on iPhone While Signing
Question details
The Acrobat Sign application unexpectedly closes or crashes when attempting to select a signature field or sign a document on an iPhone.

- Product
- Acrobat Sign App
- Device & OS
- iPhone (iOS 18.3.2)
- Scenario
- Selecting a signature field or signing a document within the mobile app.
- Observed behavior
- The application closes abruptly during the document signing process.
Ensure your iPhone has a stable internet connection and verify that you have your Adobe account credentials handy before proceeding to reinstall the app.
Reinstall Acrobat Sign and Restart Your iPhone
Uninstalling and reinstalling the app clears corrupted cache data, while restarting your device resolves temporary system glitches.
A clean installation of the app often resolves unexpected crashing issues by clearing out corrupted local data that might be interfering with the signing process.
Long-press the Acrobat Sign app icon on your iPhone home screen, select 'Remove App', and then tap 'Delete App' to uninstall it completely.
Hold down the volume button and the side button until the power-off slider appears. Drag the slider, wait for the device to turn off, and then press and hold the side button to turn it back on.
Open the App Store, search for 'Acrobat Sign', and download the application again. Log in with your credentials and attempt to sign the document.
Update iOS and the Acrobat Sign App
Keeping your device and applications up to date ensures maximum compatibility and important bug fixes.
Contact Support with Diagnostic Details
If the crashing persists, reach out to support with specific information about the issue for advanced troubleshooting.
Sign PDFs Smoothly on Your iPhone with WPS Office
Avoid app crashes and sign your important documents seamlessly using the built-in PDF tools in WPS Office. It provides a stable and easy-to-use environment for managing and signing PDFs on mobile devices.
- 1. Open your PDF in WPS Office: Launch the WPS Office app on your iPhone and open the PDF document you need to sign.
- 2. Access the Fill & Sign tool: Tap 'Tools' at the bottom menu, navigate to the 'PDF Edit' or 'Annotation' tab, and select the 'Signature' option.
- 3. Create your signature: Draw your signature on the screen, or select a previously saved signature.
- 4. Place and resize: Tap on the document where you want the signature to appear. You can drag the corners to resize it perfectly.
- 5. Save the document: Tap 'Done' or 'Save' to finalize the document, which can then be easily shared directly from the app.

Frequently Asked Questions
Why does Acrobat Sign crash only on specific documents?
The document might be too large, corrupted, or contain complex scripts and form fields that the mobile app struggles to process. Trying a different or flattened version of the PDF can help identify if the document is the issue.
Will I lose my saved signatures if I reinstall the app?
If your signatures are synced to your cloud account, they will automatically be restored once you log back into the app after reinstallation.
Can an outdated iOS version cause app crashes?
Yes, using an older iOS version with a newly updated app can lead to compatibility issues and unexpected crashes. It is always recommended to keep both your operating system and apps updated.




