How to Fix Adobe Acrobat Freezing When Adding a Signature on Mac
Question details
The user needs to resolve an issue where Adobe Acrobat freezes, becomes unresponsive, or displays a black screen while trying to add a signature to a PDF document.
- Product
- Adobe Acrobat
- Device & OS
- macOS
- Scenario
- Adding a digital or electronic signature to a PDF document.
- Observed behavior
- The application freezes, becomes unresponsive, or the screen turns black during the signature creation process.
Before troubleshooting, save your current work and ensure you have your Adobe ID credentials handy in case you need to sign back in after updating or restarting the application.
Update Acrobat and macOS
Running outdated software often causes compatibility issues that lead to application freezes on Mac.
Software updates contain vital bug fixes for known issues. Ensuring both your operating system and Adobe Acrobat are fully updated is the most reliable way to prevent freezing and crashing during resource-intensive tasks like cryptographic signing.
Open Adobe Acrobat, go to the 'Help' menu at the top of the screen, and select 'Check for Updates'. Follow the prompts to install any available updates.
Click the Apple menu in the top left corner, choose 'System Settings' (or 'System Preferences'), and navigate to 'General' > 'Software Update'. Install any pending updates for your Mac.
Once all updates are installed, click the Apple menu and select 'Restart' to apply the changes completely.
Open Acrobat and try signing a completely different, newly created PDF file to verify if the issue is specific to the original document or resolved globally.
Disable the Modern Signing UI
If the screen goes black specifically during digital signature creation, reverting to the classic interface can bypass the graphical glitch.
Use WPS Office to Sign PDFs on Mac Without Freezing
If Adobe Acrobat continues to crash, use WPS Office as a lightweight and stable alternative to add electronic signatures to your PDFs on macOS seamlessly.
- 1. Open PDF in WPS Office: Launch WPS Office on your Mac and open the PDF document you need to sign.
- 2. Access the Sign Tool: Navigate to the 'Fill & Sign' or 'PDF Edit' tab at the top and click on the 'Sign' button.
- 3. Create and Apply Signature: Create your signature by typing, drawing, or uploading an image, then simply click anywhere on the document to place it.
Frequently Asked Questions
Why does my screen go black when adding a signature in Adobe Acrobat on Mac?
A black screen or freeze during signing is often caused by a graphics rendering glitch with Acrobat's modern signing interface on macOS. Reverting to the classic signature UI in Acrobat's Signature Preferences or updating the software typically resolves this.
Are certificate-based signatures different from standard electronic signatures?
Yes, certificate-based signatures use a digital ID to cryptographically bind your identity to the document, requiring more system resources. Standard electronic signatures are visual representations (like a typed name or drawn image). Both can occasionally cause freezes if the application is outdated.
Can a corrupted PDF cause Acrobat to freeze when signing?
Yes. If only one specific PDF causes Acrobat to freeze while signing, the file itself may be corrupted or contain complex, conflicting security restrictions. Trying to sign a blank, newly created PDF can help determine if the specific file is the culprit.
