Fix Acrobat Reader Freezing When Saving a Digitally Signed PDF on Mac
Question details
The user is unable to save a digitally signed PDF document because the application freezes during the save process.
- Product
- Adobe Acrobat Reader
- Device & OS
- macOS Catalina
- Scenario
- Adding a digital signature to a PDF and attempting to save the file using the 'Save As' dialogue.
- Observed behavior
- Acrobat Reader freezes indefinitely on the Save As screen, the document fails to save, and a force quit is required to close the application.
Ensure you have safely backed up the original, unsigned PDF document and note your current macOS Catalina version in your System Preferences.
Update Application and Change Save Location
Updating Acrobat Reader ensures macOS Catalina compatibility, while changing the save path bypasses potential folder permission restrictions causing the freeze.
macOS Catalina introduced stricter file access and permission rules. If Acrobat Reader tries to save a signed document to a restricted or unsynced folder, the Save As dialog may hang completely.
Launch Adobe Acrobat Reader, navigate to the 'Help' menu at the top of your screen, and select 'Check for Updates'. Install any available patches.
Ensure your Mac user account has Read & Write privileges for the folder where you are trying to save the PDF. You can check this by right-clicking the folder and selecting 'Get Info'.
When applying the digital signature and the Save As screen appears, choose a different local directory (such as your Desktop or Documents folder) instead of a cloud-synced or network drive.
Instead of overwriting the existing file, type a completely new filename in the Save As dialog to prevent file-lock conflicts.
Test Alternative PDFs and Report the Bug
Isolate whether the freezing issue is specific to one corrupted document or a wider application bug.
Digitally Sign and Save PDFs on Mac Without Freezing
If Acrobat Reader continues to crash on macOS Catalina, WPS Office offers a stable and lightweight alternative. You can easily open, digitally sign, and save your PDF documents without encountering freezing issues on your Mac.
- 1. Open your PDF in WPS Office: Launch WPS Office on your Mac and open the unsigned PDF document you need to work on.
- 2. Access the Signature Tool: Navigate to the 'Protect' or 'PDF Edit' tab on the top ribbon and select the 'Sign' or 'PDF Signature' feature.
- 3. Apply your digital signature: Create your signature by typing, drawing, or uploading an image, and place it exactly where you need it on the document.
- 4. Save the document securely: Click 'File' and select 'Save As' to easily save your newly signed PDF to your preferred local or cloud directory.
Frequently Asked Questions
Why does Acrobat Reader freeze on the Save As screen on macOS Catalina?
This freezing is commonly caused by macOS Catalina's strict file and folder permission changes, compatibility bugs within older versions of Acrobat Reader, or attempting to save over a file that is currently locked by another background process.
How do I force quit Acrobat Reader if it's completely frozen?
Press the Option, Command, and Esc keys at the same time to open the Force Quit Applications window. Select Adobe Acrobat Reader from the list and click the 'Force Quit' button.
Will changing the filename prevent the signature save error?
Yes, in many cases. Saving the signed document with a completely new filename (rather than attempting to overwrite the original) bypasses file-locking mechanisms that frequently cause the 'Save As' dialog to freeze.
