created by software (like InDesign, Illustrator, or online PDF converters) when a font is not fully embedded in a PDF.
: Some users have found success replacing these with Myriad Pro or Rockwell to maintain the original look. How to Fix "Missing CID Font" Errors cid font f1 f2 f3 f4 f5 free download repack
While the original commercial F1-F5 fonts are proprietary to Adobe systems, a legal repack using open-source substitutes (like Google Noto Fonts or Ghostscript) will solve 99% of missing CID errors. created by software (like InDesign, Illustrator, or online
Understanding the "CID Font F1 F2 F3 F4 F5 Free Download Repack" Search Result created by software (like InDesign
: Because these are internal names generated on the fly, you won't find a legitimate "CIDFont F1" install file on the web. How to Fix Missing Font Errors