carta
fonttosfnt(1)

fonttosfnt1

Wrap a bitmap font in a sfnt (opentype) wrapper

Usage

fonttosfnt [options] -o file.otb [--] [font] ...

fonttosfnt {--help | --version}

Overview

Wrap a bitmap font or a set of bitmap fonts in a sfnt (TrueType or OpenType) wrapper. If no font is specified, a BDF font is read from standard input (stdin).

Options

-v

Be verbose.

-c

Do not crop glyphs. This usually increases file size, but may sometimes yield a modest decrease in file size for small character cell fonts (terminal fonts).

-b

Write byte-aligned glyph data. By default, unaligned data is written, which yields a smaller file size.

-r

Do not reencode fonts. By default, fonts are reencoded to Unicode whenever possible.

-g n

Set the type of scalable glyphs that we write. If n is 0, no scalable glyphs are written; this is valid but confuses most current software. If n is 1, a single scalable glyph (the undefined glyph) is written; this is recommended, but triggers a bug in current versions of FreeType. If n is 2 (the default), a sufficiently high number of blank glyphs are written, which works with FreeType but increases file size.

-m n

Set the type of scalable metrics that we write. If n is 0, no scalable metrics are written, which may or may not be valid. If n is 1, full metrics for a single glyph are written, and only left sidebearing values are written for the other glyphs. If n is 2, scalable metrics for all glyphs are written, which increases file size and is not recommended. The default is 1.

--

End of options.

--help

Prints a usage message and exits.

--version

Prints version info and exits.

History

  • Arch Linux 2026-11-01: the text shown here
  • Debian 13 (Trixie)
  • Debian 12 (Bookworm) to Debian 5.0 (Lenny)

--help since Arch Linux 2026-11-01; --version since Arch Linux 2026-11-01.

Bugs

Some of the font-level values, notably sub- and superscript positions, are dummy values.

Author

The version of Fonttosfnt included in this X.Org Foundation release was originally written by Juliusz Chroboczek <[email protected]> for the XFree86 project.

From xorg-fonttosfnt 1.2.5-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.