F6 ((new)): Cidfont+f1 F2 F3 F4 F5

Thus, f1 … f6 simply means the PDF contains .

The software that created the PDF failed to properly decode or embed the font data during export. cidfont+f1 f2 f3 f4 f5 f6

: If a software program creates a "subset" of a font (including only the specific characters used in the doc) but fails to include the mapping data, the PDF reader may fall back to these generic names. Thus, f1 … f6 simply means the PDF contains