Best for: Replacing all F1–F7 errors across multiple languages. Google Noto is designed to completely eliminate "Tofu" (missing character boxes). It includes high-quality CID-keyed versions for Japanese, Korean, and Chinese.
No separate download is needed. All families include a dedicated Bold weight. In most PDFs, F3 simply calls the Bold instance of F1 or F2.
True italic for CJK is unusual, but Western-fallback italic works. Use Source Han Sans with fake slant or download Noto Sans CJK with italic from Google Noto. Best for: Replacing all F1–F7 errors across multiple
These are slot numbers or font aliases used in some PostScript printers (especially older models from Apple, HP, or Adobe‑licensed engines) and in certain PDF documents that rely on printer‑resident fonts rather than embedded subsets.
Typical mapping (varies by device/firmware): Important: These assignments are not universal
| Alias | Typical Base Font (Example) | Type / Language | |-------|------------------------------------|----------------| | F1 | Courier (CID‑keyed variant) | Monospaced Latin / fallback | | F2 | HeiseiMin‑W3 (or similar) | Japanese Mincho | | F3 | HeiseiKakuGo‑W5 | Japanese Gothic | | F4 | StSong‑Light (Chinese simplified) | Chinese Serif | | F5 | MHei‑Medium (Chinese traditional) | Chinese Sans | | F6 | HYGothic-Medium (Korean) | Korean Gothic | | F7 | HYMyeongJo-Medium (Korean) | Korean Myeongjo |
Important: These assignments are not universal. Some printers map F1–F7 to completely different fonts. The exact font used depends on the device’s firmware and region. If you open a PDF that uses “/F1
If you open a PDF that uses “/F1 12 Tf” and F1 is not embedded, your viewer may substitute a default, potentially altering the document’s appearance.