If you simply Google "cidfont f1 font free download for mac" and click the first result, you will likely land on dubious font aggregators offering a file named cidfont_f1.zip or f1.otf .
Because it is a technical error rather than a real font file, there is no official "CIDFont F1" download. To resolve issues with this font on a Mac, you must either substitute it with a compatible typeface or use specific PDF repair techniques. Why "CIDFont+F1" Appears cidfont f1 font free download for mac