Fix Adobe Acrobat DC Crashing When Changing Fonts or Signing PDFs
Question details
Users experience unexpected freezing or crashes in Adobe Acrobat DC when attempting to modify text fonts or use the document signing tool.
- Product
- Adobe Acrobat DC
- Device & OS
- not provided
- Scenario
- Editing text fonts using the Add Text feature or applying a signature to a PDF document.
- Observed behavior
- The application stops responding or crashes completely during the font change or signing process.
Verify if the crash happens with all PDF documents or just one specific file, and ensure any unsaved work in other open applications is saved before proceeding.
Repair Installation and Update Adobe Acrobat
Using the built-in repair tool and installing the latest software updates resolves most stability issues causing crashes during text and signature edits.
Software glitches and outdated versions are common culprits for Acrobat instability. Adobe frequently releases patches (such as version 19.21.20058 or newer) to address known crash triggers related to font rendering and signature tools.
Open Adobe Acrobat DC, navigate to the top menu, click on 'Help', and select 'Repair Installation'. Allow the process to run completely.
Go to 'Help' > 'Check for Updates' to ensure your application is running the latest patch. Follow the on-screen prompts to install any available updates.
Restart your computer to apply the changes, then open your PDF and attempt to change the font or sign the document again.
Test File Compatibility and Preferences
Isolating the issue to a corrupted PDF file or incorrect application preference settings can help identify the root cause of the crash.
Disable Data Execution Prevention (Windows)
Adjusting Windows security settings can prevent conflicts with Acrobat's signature and font rendering tools.
Edit and Sign PDFs Smoothly with WPS Office
Avoid unexpected crashes and freezes. WPS Office includes a powerful, stable PDF editor that lets you easily modify text, change fonts, and add secure signatures to your documents.
- 1. Open your PDF in WPS Office: Launch WPS Office, click on 'Open', and select the PDF document you want to edit.
- 2. Edit Text and Fonts: Navigate to the 'Edit' tab, click 'Edit Text', and use the font customization panel to change your fonts instantly without application lag.
- 3. Sign the Document: Go to the 'Fill & Sign' or 'Protect' tab and select 'Sign' to create, draw, or insert your digital signature safely.
Frequently Asked Questions
Why does Adobe Acrobat DC crash only when I try to sign a document?
This is often caused by corrupted signature certificates, outdated software versions, or security conflicts with Windows Data Execution Prevention (DEP) settings.
Will resetting Acrobat preferences fix the font crashing issue?
Yes, corrupted preference files can cause Acrobat to freeze when loading system fonts. Resetting your preferences or comparing them with a working computer's setup can often resolve font rendering crashes.
How can I manually update Adobe Acrobat if the application keeps crashing?
You can manually download the latest patch release notes and standalone installers directly from the official Adobe Acrobat Enterprise Toolkit (ETK) website, which bypasses the in-app updater.
Is it possible the PDF file itself is causing Acrobat to crash?
Absolutely. If a specific PDF has corrupted font subsets, broken layout elements, or complex signature fields, it can crash the application. Always test with a newly created blank PDF to isolate whether the issue is file-specific or software-wide.
