"CIDFont F1, F2, F3, F4" are generic labels automatically assigned to fonts by software (like Adobe InDesign or various PDF exporters) when the original font names cannot be correctly embedded or decoded in a PDF. Seeing these names often indicates a font embedding or substitution issue rather than a specific "better" font choice. Creative COW What these labels mean
Use (Linux/macOS) to check which CID fonts are not embedded: cid font f1 f2 f3 f4 better
When you encounter a PDF that shows garbled text due to bad CID labels, use Ghostscript to rewrite the font structure: "CIDFont F1, F2, F3, F4" are generic labels
Because these are generic labels, there is no "better" option; they simply represent different fonts or styles (weights) used in the original document: there is no "better" option