Liberation fonts
From Wikipedia, the free encyclopedia
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| Typeface | Liberation Sans |
|---|---|
| Category | Sans-serif |
| Foundry | Ascender Corp. |
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| Typeface | Liberation Serif |
|---|---|
| Category | Serif |
| Foundry | Ascender Corp. |
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| Typeface | Liberation Mono |
|---|---|
| Category | Monospace |
| Foundry | Ascender Corp. |
Liberation is the collective name of three TrueType font families: Liberation Sans, Liberation Serif and Liberation Mono. These fonts are metric-compatible with Monotype Corporation's Arial, Times New Roman, and Courier New respectively. Liberation Sans, Liberation Serif were derived from Ascender Sans, Ascender Serif respectively; Liberation Mono uses base designs from Ascender Sans and Ascender Uni Duo.
They are available under the GNU General Public License with a font embedding exception, which states that documents embedding these fonts do not automatically fall under the GNU GPL.
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[edit] History
The fonts were developed by Steve Matteson of Ascender Corp. as Ascender Sans and Ascender Serif.[1]. A variant of this font family, with the addition of a monospaced font and open-source license, was licensed by Red Hat, Inc. as the Liberation font family.[2]
The fonts were developed in two stages. The first release was a set of fully usable fonts, but they lacked the full hinting capability. The second release, made available in the beginning of 2008, provides full hinting of the fonts.
The Fedora Project, as of version 9, features slightly revised versions of the Liberation fonts contributed by Ascender. These include a slashed zero and various changes made for the benefit of internationalization.[3]
[edit] Characteristics
Liberation Sans and Liberation Serif closely match Monotype Corporation fonts Arial and Times New Roman, respectively.
Liberation Mono is styled closer to Liberation Sans than Monotype's Courier New, though its metrics match with Courier New.
The Liberation fonts are intended as free, open-source replacements of the aforementioned encumbered fonts.
 Comparison of Liberation Sans to Arial |
 Comparison of Liberation Serif to Times New Roman |
 Comparison of Liberation Mono to Courier New |
All three fonts support code pages 437, 737, 775, 850, 852, 855, 857, 860, 861, 863, 865, 866, 869, 1250, 1251, 1252, 1253, 1254, 1257, the Macintosh Character Set (US Roman), and the Windows OEM character set,
[edit] License controversy
This license for the Liberation fonts adds several clauses to the base GPL. The debian-legal mailing list, a list for discussing legal issues in Debian software, has discussed the impact of a clause requiring physical products including the fonts to make it possible for users to access, modify, and reinstall the fonts on the product. Concerns about this clause making the fonts non-redistributable or perhaps violating the copyright of Free Software Foundation on the GPL were raised.[4] However, the concern seems to be only limited to Debian distributions. There is also a claim that the extra clause only serves to confuse unqualified readers, not to contradict GPL.[5]
[edit] Statistics
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[edit] Liberation Mono
| Version | 1.00 | |||
|---|---|---|---|---|
| Variant | Bold | Bold Italic | Italic | Regular |
| Blocks | ||||
| Alphabetic Presentation Forms | 2 | 2 | 2 | 2 |
| Arrows | 7 | 7 | 7 | 7 |
| Basic Latin | 95 | 95 | 95 | 95 |
| Block Elements | 8 | 8 | 8 | 8 |
| Box Drawing | 40 | 40 | 40 | 40 |
| Currency Symbols | 4 | 4 | 4 | 4 |
| Cyrillic | 94 | 94 | 94 | 94 |
| General Punctuation | 23 | 23 | 23 | 23 |
| Geometric shapes | 15 | 15 | 15 | 15 |
| Greek and Coptic | 73 | 73 | 73 | 73 |
| Latin Extended Additional | 8 | 8 | 8 | 8 |
| Latin Extended-A | 128 | 128 | 128 | 128 |
| Latin Extended-B | 7 | 7 | 7 | 7 |
| Latin-1 Supplement | 96 | 96 | 96 | 96 |
| Letterlike Symbols | 6 | 6 | 6 | 6 |
| Mathematical Operators | 17 | 17 | 17 | 17 |
| Miscellaneous Symbols | 11 | 11 | 11 | 11 |
| Miscellaneous Technical | 4 | 4 | 4 | 4 |
| Number Forms | 4 | 4 | 4 | 4 |
| Private Use Area | 2 | 2 | 2 | 2 |
| Spacing Modifier Letters | 9 | 9 | 9 | 9 |
| Superscripts and Subscripts | 1 | 1 | 1 | 1 |
| Totals | ||||
| Blocks | 22 | 22 | 22 | 22 |
| Characters | 654 | 654 | 654 | 654 |
| Glyphs | 663 | 663 | 663 | 663 |
| Kerning Pairs | 0 | 0 | 0 | 0 |
| Hinting (points) | ||||
| Smoothed | 0-6 | 0-6 | 0-6 | 0-6 |
| Hinted | 7-11 | 7-12 | 7-27 | 7-27 |
| Hinted and smoothed | 12+ | 13+ | 28+ | 28+ |
[edit] Liberation Sans
| Version | 1.00 | |||
|---|---|---|---|---|
| Variant | Bold | Bold Italic | Italic | Regular |
| Blocks | ||||
| Alphabetic Presentation Forms | 2 | 2 | 2 | 2 |
| Arrows | 7 | 7 | 7 | 7 |
| Basic Latin | 95 | 95 | 95 | 95 |
| Block Elements | 8 | 8 | 8 | 8 |
| Box Drawing | 40 | 40 | 40 | 40 |
| Currency Symbols | 4 | 4 | 4 | 4 |
| Cyrillic | 94 | 94 | 94 | 94 |
| General Punctuation | 23 | 23 | 23 | 23 |
| Geometric shapes | 15 | 15 | 15 | 15 |
| Greek and Coptic | 73 | 73 | 73 | 73 |
| Latin Extended Additional | 8 | 8 | 8 | 8 |
| Latin Extended-A | 128 | 128 | 128 | 128 |
| Latin Extended-B | 7 | 7 | 7 | 7 |
| Latin-1 Supplement | 96 | 96 | 96 | 96 |
| Letterlike Symbols | 6 | 6 | 6 | 6 |
| Mathematical Operators | 17 | 17 | 17 | 17 |
| Miscellaneous Symbols | 11 | 11 | 11 | 11 |
| Miscellaneous Technical | 4 | 4 | 4 | 4 |
| Number Forms | 4 | 4 | 4 | 4 |
| Private Use Area | 3 | 3 | 3 | 3 |
| Spacing Modifier Letters | 9 | 9 | 9 | 9 |
| Superscripts and Subscripts | 1 | 1 | 1 | 1 |
| Totals | ||||
| Blocks | 22 | 22 | 22 | 22 |
| Characters | 655 | 655 | 655 | 655 |
| Glyphs | 668 | 668 | 668 | 663 |
| Kerning Pairs | 908 | 820 | 857 | 908 |
| Hinting (points) | ||||
| Smoothed | 0-6 | 0-6 | 0-6 | 0-6 |
| Hinted | 7-8 | 7-8 | 7-13 | 7-13 |
| Hinted and smoothed | 9+ | 9+ | 14+ | 14+ |
[edit] Liberation Serif
| Version | 1.00 | |||
|---|---|---|---|---|
| Variant | Bold | Bold Italic | Italic | Regular |
| Blocks | ||||
| Alphabetic Presentation Forms | 2 | 2 | 2 | 2 |
| Arrows | 7 | 7 | 7 | 7 |
| Basic Latin | 95 | 95 | 95 | 95 |
| Block Elements | 8 | 8 | 8 | 8 |
| Box Drawing | 40 | 40 | 40 | 40 |
| Currency Symbols | 4 | 4 | 4 | 4 |
| Cyrillic | 94 | 94 | 94 | 94 |
| General Punctuation | 23 | 23 | 23 | 23 |
| Geometric shapes | 15 | 15 | 15 | 15 |
| Greek and Coptic | 73 | 73 | 73 | 73 |
| Latin Extended Additional | 8 | 8 | 8 | 8 |
| Latin Extended-A | 128 | 128 | 128 | 128 |
| Latin Extended-B | 7 | 7 | 7 | 7 |
| Latin-1 Supplement | 96 | 96 | 96 | 96 |
| Letterlike Symbols | 6 | 6 | 6 | 6 |
| Mathematical Operators | 17 | 17 | 17 | 17 |
| Miscellaneous Symbols | 11 | 11 | 11 | 11 |
| Miscellaneous Technical | 4 | 4 | 4 | 4 |
| Number Forms | 4 | 4 | 4 | 4 |
| Private Use Area | 3 | 3 | 4 | 4 |
| Spacing Modifier Letters | 9 | 9 | 9 | 9 |
| Superscripts and Subscripts | 1 | 1 | 1 | 1 |
| Totals | ||||
| Blocks | 22 | 22 | 22 | 22 |
| Characters | 655 | 655 | 656 | 656 |
| Glyphs | 660 | 660 | 661 | 661 |
| Kerning Pairs | 865 | 845 | 821 | 867 |
| Hinting (points) | ||||
| Smoothed | 0-6 | 0-6 | 0-6 | 0-6 |
| Hinted | 7-10 | 7-13 | 7-15 | 7-13 |
| Hinted and smoothed | 11+ | 14+ | 16+ | 14+ |
[edit] See also
- Droid fonts Droid font family by the same font designer.
[edit] External links
[edit] References
- ^ http://www.fontmarketplace.com/font/ascender-sans-italic.aspx/289 Ascender Sans notation at Fontmarketplace.com
- ^ Webbink, Mark (2007-05-09). Liberation Fonts (English). Red Hat. Archived from the original on 2008-01-17.
- ^ https://bugzilla.redhat.com/buglist.cgi?product=Fedora&version=rawhide&component=liberation-fonts Bugzilla entries for the revised Liberation fonts included in Fedora 9
- ^ Alan Baghumian (2007-05-12). License question: GPL+Exception. debian-legal.
- ^ Bug #113889 in Ubuntu: Ubuntu needs the Liberation Fonts. Launchpad.
