NAME

ttfdump - Dumping the contents of a TrueType Font file

SYNOPSIS

ttfdump

tablename ]

glyphnumber ]

collection ]

dumpfile ]

ttfile

DESCRIPTION

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.

EXAMPLE

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.

AUTHOR

Li-Da Lho, ollie@ms1.hinet.net