Fix unknown error issues in Illustrator

This issue occurs when you try to save a file in Illustrator in .ai format. Start using the workarounds in the order mentioned below to fix the problem. Try to save the file after you perform each workaround and move to the next if the problem persists. 

Save the file first as PDF and then save the file in .ai format. 

• Outline the live text in the document and try to save the file. 
• Change the font or fix the corrupted fonts in the file.

For more details, see Re-shape text using outlines. 

Try to save the document again and check if you still face the issue. 

Modify file preferences

Check If there are any existing preferences for file optimization that interrupt the file save.

Try these steps

1. Open Preferences by pressing Cmd+K or Control+K.
2. Go to File Handling & Clipboard.
3. Uncheck Optimize file Open and Save Time on Slow Network (Beta)
4. Uncheck Save in the background and click OK. 

Try to save the document again and check if you still face the issue. 

Modify PDF settings

Check If there is an issue with either the default PDF Presets or the customized PDF Presets in your system. 

Try these steps

Share your files with us

We recommend that you share your presets folder and file with us at ShareWithAI@adobe.com in a zip format and help us investigate the issue. 

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