This guide explains exactly what CID‑keyed fonts are, what the F1–F7 labels mean, and where you can obtain for modern use.
The “F” numbers (F1, F2, … F7) appear in or inside PDFs that reference a printer’s internal ROM fonts. This guide explains exactly what CID‑keyed fonts are,
Over the next week, Mira fed each sheet into an old scanner and uploaded the images to her laptop. F2 was warm and rounded, a friendly face for children’s books. F3 curled wildly, an artful display type for posters and moonlit signs. F4 was austere and geometric, perfect for technical manuals. F5 hinted at calligraphy, strokes varying like a dancer’s motion. F6 bore the tight economy of a newspaper column; F7 bloomed into a decorative serif that seemed to hold old-world authority. F2 was warm and rounded, a friendly face