In Adobe Acrobat, go to File > Properties > Fonts to see if the real font name is listed next to the "F1" or "F2" tag.
: Determine the specific use case for the font (e.g., web use, printing, personal project). cid font f1 f2 f3 free download link
There is no "CID Font F1 F2 F3" software for you to download because these are not actual font names. Instead, they are generic placeholders created by software (like Adobe Acrobat or Illustrator) when it cannot find or embed the original font used in a PDF. Warning: Download Safety In Adobe Acrobat, go to File > Properties