Cid Font F1 Family -
Understanding the CID Font F1 Family: A Technical Deep Dive
Embed Fonts on Export:
When saving a document as a PDF, always select the option to "Embed All Fonts."
To find out exactly which font family F1 corresponds to in your specific case: cid font f1 family
- License: permissive/commercial/restrictive?
- Formats included: CFF/OTF/Type1/WOFF2?
- Character collection: Adobe-Japan1 / Adobe-GB1 / other?
- Available weights/styles and metrics consistency
- Hinting quality on screen at body text sizes
- Embedding bits/permissions (for PDFs)
Character Mapping
: These fonts use a CMap (Character Map) file to link encoded strings to specific glyph IDs rather than using standard character names. How to Fix CIDFont+F1 Errors Understanding the CID Font F1 Family: A Technical
Government and corporate archives often store PDFs with CID font F1 families to ensure that CJK text remains searchable and scalable across different systems. License: permissive/commercial/restrictive
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This simply indicates that the font type is /Type /Font and /Subtype /CIDFontType0 or /CIDFontType2 (TrueType). It is Adobe’s flag saying: "Do not look for a standard 256-character font here; use the CID subsystem."
If you open a PDF in a text editor (or use a tool like pdftk or qpdf to uncompress the stream), a CID Font F1 definition looks similar to this: