Are you currently trying to a broken file, or are you creating a document and want to ensure it looks right for everyone? CIDFont+F1 issue - Adobe Community
Fix: Use an tool to "read" the document and convert it back into searchable text. Cid Font F1 Normal
Select or Adobe PDF as your printer destination. Are you currently trying to a broken file,
Restart your Mac and hold down the Shift key to boot into Safe Mode . This automatically flushes and rebuilds the system font cache. Best Practices for Creators: Preventing CID Font Errors Cid Font F1 Normal