The Ahem font was developed by Todd Fahrner to help test writers develop predictable tests. The font's em square is exactly square. Its ascent and descent is exactly the size of the em square. This means that the font's extent is exactly the same as its line-height, meaning that it can be exactly aligned with padding, borders, margins, and so forth. The font's alphabetic baseline is 0.2em above its bottom, and 0.8em below its top. The font has an x-height of 0.8em. The font has four main glyphs: 'X' U+0058 A square exactly 1em in height and width. 'p' U+0070 A rectangle exactly 0.2em high, 1em wide, and aligned so that its top is flush with the baseline. 'É' U+00C9 A rectangle exactly 0.8em high, 1em wide, and aligned so that its bottom is flush with the baseline. ' ' U+0020 A transparent space exactly 1em high and wide. Most other US-ASCII characters in the font have the same glyph as X. Additionally, the following Unicode formatting characters are assigned appropriate glyphs so that they may safely be used in tests as well: U+2002 - en-space U+2003 - em-space U+2004 - 3-per-em space U+2005 - 4-per-em space U+2006 - six-per-em space U+2009 - thin space U+200A - hair space U+200B - zero-width space U+200C - zero-width non-joiner U+200D - zero-width joiner U+3000 - ideographic space U+FEFF - zero-width non-breaking space The Ahem font belongs to the public domain as described in COPYING. Acknowledgements: v1 The font was originally created by Todd Fahrner in the late 90s. v2 It was updated by Paul Nelson in the mid 2000s to add x-height information to the OS/2 table and to add the space and non-breaking space glyphs. v3 It was further updated by Sergey Malkin to include the non-ASCII space glyphs.
Name Last modified Size Description
Parent Directory - README 27-Jul-2016 20:49 1.8K COPYING 11-Jun-2010 23:21 1.9K Ahem.sit 11-Jun-2010 23:21 4.7K AHEM____.TTF 27-Jul-2016 20:49 14K Ahem.ps 11-Jun-2010 23:21 42K