Table References

Use these pages when hand-authoring table JSON fragments.

Shared SFNT Tables

Required Tables

• cmap — Character to glyph mapping
• head — Font header
• hhea — Horizontal header
• hmtx — Horizontal metrics
• maxp — Maximum profile
• name — Naming table
• OS/2 — OS/2 and Windows specific metrics
• post — PostScript name mapping

Advanced Typographic Tables

• GDEF — Glyph definition data
• GPOS — Glyph positioning data
• GSUB — Glyph substitution data
• BASE — Baseline data
• JSTF — Justification data
• MATH — Math layout data

Vertical Metrics

• vhea — Vertical metrics header
• vmtx — Vertical metrics

Bitmap Glyph Tables

• EBLC — Embedded bitmap location data
• EBDT — Embedded bitmap data
• EBSC — Embedded bitmap scaling data
• CBLC — Color bitmap location data
• CBDT — Color bitmap data
• sbix — Standard bitmap graphics

Color Font Tables

• COLR — Color table
• CPAL — Color palette table
• SVG — SVG glyph descriptions

Font Variations Tables

• fvar — Font variations (defines axes)
• avar — Axis variations (axis mapping)
• STAT — Style attributes
• MVAR — Metrics variations
• HVAR — Horizontal metrics variations
• VVAR — Vertical metrics variations

Other Shared Tables

• kern — Kerning (legacy, prefer GPOS)
• DSIG — Digital signature
• hdmx — Horizontal device metrics
• LTSH — Linear threshold data
• MERG — Merge
• meta — Metadata
• PCLT — PCL 5 data
• VDMX — Vertical device metrics

OTF-Specific Tables

• CFF — Compact Font Format 1.0
• CFF2 — Compact Font Format 2.0
• VORG — Vertical Origin

TTF-Specific Tables

Outline Tables

• glyf — Glyph data (TrueType outlines)
• loca — Index to location (glyph offsets)

Hinting Tables

• cvt — Control Value Table
• fpgm — Font program
• prep — Control Value Program
• gasp — Grid-fitting / Scan-conversion

TrueType Variation Tables

• gvar — Glyph variations
• cvar — CVT variations

Apple AAT Tables

• bloc — Bitmap location data (Apple)
• bdat — Bitmap data (Apple)
• ltag — Language tags (Apple)