🦦 Understanding the what are the font tables and what they do is a core skill in font engineering. You can view the name tables using these tools:
- Font Table Viewer
- DTL OT Master
- ttx, a practical command line tool of fonttools. Some font testing web pages allow you to view a selection of tables:
- https://fontdrop.info/#/ → in the “data” tab
- https://fontgauntlet.com → if you click on the small search icon next to the font name
cmap Character to glyph mappinghead Font headerhhea Horizontal headerhmtx Horizontal metricsmaxp Maximum profilename Naming tableOS/2 OS/2 and Windows specific metricspost PostScript informationcvt Control Value Table (optional table)fpgm Font program (optional table) glyf Glyph dataloca Index to locationprep CVT Program (optional table)gasp Grid-fitting/Scan-conversion (optional table)CFF Compact Font Format 1.0CFF2 Compact Font Format 2.0VORG Vertical Origin (optional table)SVG The SVG (Scalable Vector Graphics) tableEBDT Embedded bitmap dataEBLC Embedded bitmap location dataEBSC Embedded bitmap scaling dataCBDT Color bitmap dataCBLC Color bitmap location datasbix Standard bitmap graphicsBASE Baseline dataGDEF Glyph definition dataGPOS Glyph positioning dataGSUB Glyph substitution dataJSTF Justification dataMATH Math layout dataavar Axis variationscvar CVT variations (TrueType outlines only)fvar Font variationsgvar Glyph variations (TrueType outlines only)HVAR Horizontal metrics variationsMVAR Metrics variationsSTAT Style attributes (required for variable fonts, optional for non-variable fonts)VVAR Vertical metrics variationsCOLR Color tableCPAL Color palette tableCBDT Color bitmap dataCBLC Color bitmap location datasbix Standard bitmap graphicsSVG The SVG (Scalable Vector Graphics) tableDSIG Digital signaturehdmx Horizontal device metricskern KerningLTSH Linear threshold dataMERG Mergemeta MetadataSTAT Style attributesPCLT PCL 5 dataVDMX Vertical device metricsvhea Vertical Metrics headervmtx Vertical Metrics