When designers say the "CID Font F1 family," they are usually referring to the custom, high-legibility, aggressive sans-serifs that echo the official branding.
Some PDF viewers struggle to read "Identity-H" encoding, leading them to display these generic CID labels instead. How to "Fix" the F1 Family cid font f1 family hot
If you are seeing this error when opening or printing a document, try these solutions: When designers say the "CID Font F1 family,"