ttfdump1

Dumping the contents of a truetype font file

Usage

ttfdump [-h] [-t tablename] [-g glyphnumber] [-c collection] [-o dumpfile] [-i] ttfile

Overview

ttfdump dumps the contents of a TrueType font file in ASCII form. A TrueType font file is consist of various tables. Those table are divided into two categories - Required Tables and Optional Tables. Mulitiple TrueType fonts can be merged to a TrueType Collection.

Options

-h: Print a help message on standard output and exit.

-t tablename

If this option is specified then dump the table "tablename", otherwise dump every tables in ttfile. Tablename can be one of the following:

Required Tables

cmap: character to glyph mapping table

glyf: glyph data

head: font header

hhea: horizontal header

hmtx: horizontal metrics

loca: index to location

maxp: maximum profile

name: naming table

post: PostScript information

OS/2: OS/2 and windows specific metrics

Optional Tables

cvt: control value table

fpgm: font program; not implemented yet.

gasp: grid-fitting and scan conversion procedure (grayscale)

hdmx: horizontal device metrics

kern: kerning table

LTSH: Linear threshold table

prep: CVT program; not implemented yet

PCLT: PCL5 table

VDMX: Vertical Device Metrics table

vhea: vertical metrics header

vmtx: vertical metrics

Additional OpenType Tables

GPOS: glyph positioning table

GSUB: glyph substitution table

-g glyphnumber: If this option is specified then dump the glyph with index glyphnumber, otherwise dump all glyphs in ttfile.

-c collection: Select a TrueType font in a TrueType Collection.

-o dumpfile: Output of the dump. If this option is not specified, dump to stdout.

-i ttfile: TrueType font file to be dumped.

Examples

To dump all information in the TrueType font file times.ttf:

ttfdump times.ttf

To dump the required table cmap in the file:

ttfdump -t cmap times.ttf

To dump a single glyph with index 50:

ttfdump -g 50 times.ttf

Note

Instruction disassembler in not implemented.

History

Arch Linux 2026-11-01: the text shown here
Debian 13 (Trixie) to Debian 7 (Wheezy)
Debian 6.0 (Squeeze)