The Different Font Formats

You are trying to use @fontface, or you just have a different type of system. What do you do? You have to match the font format selected for your chosen system or browser. Here's a list of the different types of font types.

.AFM - Adobe Font Metrics

An .AFM file provides both global metrics for a font program and the metrics of each individual character.


Compressed file that is encoded as binary or MacBinary; stores a finder header, data fork, and resource fork; ensures the Macintosh Hierarchical File System (HFS) resource fork and data fork are both kept in one file; commonly used to transfer Macintosh files over the Internet.

.CFF - Compact Font Format

Compact Font Format (also known as CFF font format, Type 2 font format, or CFF/Type 2 font format) is a lossless compaction of the Type 1 format using Type 2 charstrings. It is designed to use less storage space than Type 1 fonts, by using operators with multiple arguments, various pre-defined default values, more efficient allotment of encoding values and shared subroutines within a FontSet (family of fonts).

.DFONT - Datafork TrueType

Datafork TrueType is a font wrapper used on Apple Macintosh computers running Mac OS X. It is a TrueType suitcase with the resource map in the data fork, rather than the resource fork as had been the case in Mac OS 9. It uses the file extension .dfont.

.EOT - Embedded OpenType Font

Embedded OpenType (EOT) fonts are a compact form of OpenType fonts designed by Microsoft for use as embedded fonts on web pages.

.OTF - OpenType Font

OpenType is a cross-platform font file format developed jointly by Adobe and Microsoft. Adobe has converted the entire Adobe Type Library into this format and now offers thousands of OpenType fonts.

.PDF - Portable Document Format

Yes, fonts can even come in this form. .pdf is a digital document from adobe, it contains embedded fonts wich can be extracted

.PFA - Printer Font ASCII

.pfa is 'Printer Font ASCII' - a file extension for a Postscript font

.PFB - Printer Font Binary

Printer Font Binary (PFB) is a binary PostScript font format created by Adobe Systems, usually carrying ".PFB" file name extension. It contains a font's glyph data.

.PFM - Printer Font Metric

Printer Font Metric (PFM) is a binary version of AFM, usually carrying ".PFM" file name extension. It contains font metric information.

.PS - Adobe PostScript Fonts

PostScript fonts are outline font specifications developed by Adobe Systems for professional digital typesetting, which uses PostScript file format to encode font information.

.PT3 - PostScript Type 3 Font

This is also used by printers and is not encrypted

.SUIT - Macintosh Font Suitcase

Font format used primarily by Mac OS Classic (Mac OS 9.2.2 and earlier); contains a single TrueType font or collection of fonts; should be stored in the System

.SVG - Scalable Vector Graphics

W3 standard font. An SVG font can be either embedded within the same document that uses the font or saved as part of an external resource.

.T42 - Type 42 font

TrueType font embedded in PostScript wrapper

.TTC - TrueType Collection

TrueType Collection (TTC) is an extension of TrueType format that allows combining multiple fonts into a single file, creating substantial space savings for collection of fonts that only use different glyphs on some characters. They were first available in Chinese, Japanese, and Korean versions of Windows, and supported for all regions in Windows 2000 and later.

.TTF TrueType Font

TrueType is an outline font standard originally developed by Apple Computer in the late 1980s as a competitor to Adobe's Type 1 fonts used in PostScript.

.WOFF - Web Open Font Format for Firefox 3.6

Mozilla Firefox has supported WOFF since version 3.6. Microsoft is reportedly "considering" supporting WOFF in Internet Explorer 9.

Learn More about Fonts

A great website for learning font extensions as well as any extension at all, is This site is very helpful to us and should be a great resource for you.


0 #2 luisb 2011-10-16 19:19 is good it shows a lot of stuff i never knew about
0 #1 burt 2011-10-13 17:35
wow that is crazy, font types should be converted and narrowed down to like 4

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