If you have a PDF showing missing glyphs or “cidfontf1 not found” errors, follow this updated workflow:
| CIDFont tag | Typical meaning (old workflows) | Modern reality |
|-------------|--------------------------------|----------------|
| F1 | Primary font | Any font, first referenced |
| F2 | Secondary / bold | Any font, second referenced |
| F3 | Italic | Any font, third referenced |
| F4 | Heading | Any font, fourth referenced |
| F5 | Code/mono | Any font, fifth referenced |
| F6 | Fallback | Any font, sixth referenced | cidfontf1 f2 f3 f4 f5 f6 updated
Key takeaway: Always dereference
F1–F6to the actual/BaseFontname. If you have a PDF showing missing glyphs
The recent updates to CIDFontF1, F2, F3, F4, F5, and F6 have brought significant enhancements to the typographic landscape, particularly for designers and typographers working with Asian languages. CID (Character Identifier) fonts, especially in the context of PostScript and PDF technologies, play a crucial role in ensuring that characters are accurately represented across different platforms and devices. Key takeaway: Always dereference F1 – F6 to