: A common free fix is to open the problematic PDF in a viewer like macOS Preview or Chrome , then select Print > Save as PDF . This often flattens the file and replaces the missing CID links with readable text.
If the document is short (like a flyer), convert text to paths/outlines. cid font f1 f2 f3 f4 f5 hot free download
Providing more details will help me give you an accurate, useful answer. : A common free fix is to open