There are two font families are here: * Matthew Carter's Bitstream Charter (called Chortle2014d here) * Paul Hunt's Source Sans Pro (Called UserAlt here) Both fonts are open source fonts and are used in compliance with their licenses. Read below for legal details. --- The fonts were edited using Fontforge, a free open-source font editor: http://fontforge.org/ TTF hinting was provided by ttfautohint http://www.freetype.org/ttfautohint/ TTF -> WOFF conversion was done with sfnt2woff: http://samiam.org/fonts/code/woff-code.tar.bz2 TTF -> EOT conversion (for IE 6-8) was done with this web service: https://www.kirsle.net/wizards/ttf2eot.cgi --- Notes on this Bitstream Charter variant * Hinting provided by ttfautohint. Bitstream Charter is finally a usable screen font, both in Windows and on a Mac. * TTF conversion done by Matthew Butterick. Check out his beautiful Equity font: http://practicaltypography.com/equity.html I have subsetted this font to make it as small as possible; only English and Spanish are supported by this font. I have also modified the E and F in the non-italic font to have smaller serifs so it looks better as a screen font. The original Bitstream Charter fonts, as donated to the MIT X Consortium (now X.org), are available here: ftp://ftp.x.org/pub/X11R7.7/src/font/font-bitstream-type1-1.0.3.tar.bz2 Matthew Butterick's conversion of Bitstream Charter is available here: http://practicaltypography.com/charter.html My version of Bitstream Charter is here: http://samiam.org/fonts/best-opensource/charter-2014-06.zip My variant of Bitstream Charter, with modified "E" and "F" letters: http://samiam.org/fonts/other/Chortle2014b.zip This is the font used for serif text. --- Notes on UserAlt UserAlt is a derivative of Source Sans Pro which, since modified, has had its name change. The following changes have been made: 1) Subsetting. Only English and Spanish are supported. 2) No open type (Open type renders poorly in Windows, even Windows 7); only true type .ttf files used. 3) Different forms (included with Source Sans) for "g" and "l" to look a little more conservative. 4) Fonts rehinted with ttfautohint. 5) Tighter line spacing. This is the font used for sans serif text. The original Source Sans Pro is available here: http://sourceforge.net/projects/sourcesans.adobe/files/ http://samiam.org/fonts/best-opensource/Source-Sans-Pro/ Source Sans Pro was designed by Paul Hunt for Adobe. -- This is the license for Chortle2014 (modified Bitstream Charter): (c) Copyright 1989-1992, Bitstream Inc., Cambridge, MA. You are hereby granted permission under all Bitstream propriety rights to use, copy, modify, sublicense, sell, and redistribute the 4 Bitstream Charter (r) Type 1 outline fonts and the 4 Courier Type 1 outline fonts for any purpose and without restriction; provided, that this notice is left intact on all copies of such fonts and that Bitstream's trademark is acknowledged as shown below on all unmodified copies of the 4 Charter Type 1 fonts. BITSTREAM CHARTER is a registered trademark of Bitstream Inc. -- This is the license for UserAlt (modified Source Sans Pro): Copyright 2010, 2012 Adobe Systems Incorporated (http://www.adobe.com/), with Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of Adobe Systems Incorporated in the United States and/or other countries. This Font Software is licensed under the SIL Open Font License, Version 1.1. This license is copied below, and is also available with a FAQ at: http://scripts.sil.org/OFL ----------------------------------------------------------- SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007 ----------------------------------------------------------- PREAMBLE The goals of the Open Font License (OFL) are to stimulate worldwide development of collaborative font projects, to support the font creation efforts of academic and linguistic communities, and to provide a free and open framework in which fonts may be shared and improved in partnership with others. The OFL allows the licensed fonts to be used, studied, modified and redistributed freely as long as they are not sold by themselves. The fonts, including any derivative works, can be bundled, embedded, redistributed and/or sold with any software provided that any reserved names are not used by derivative works. The fonts and derivatives, however, cannot be released under any other type of license. The requirement for fonts to remain under this license does not apply to any document created using the fonts or their derivatives. DEFINITIONS "Font Software" refers to the set of files released by the Copyright Holder(s) under this license and clearly marked as such. This may include source files, build scripts and documentation. "Reserved Font Name" refers to any names specified as such after the copyright statement(s). "Original Version" refers to the collection of Font Software components as distributed by the Copyright Holder(s). "Modified Version" refers to any derivative made by adding to, deleting, or substituting -- in part or in whole -- any of the components of the Original Version, by changing formats or by porting the Font Software to a new environment. "Author" refers to any designer, engineer, programmer, technical writer or other person who contributed to the Font Software. 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This restriction only applies to the primary font name as presented to the users. 4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font Software shall not be used to promote, endorse or advertise any Modified Version, except to acknowledge the contribution(s) of the Copyright Holder(s) and the Author(s) or with their explicit written permission. 5) The Font Software, modified or unmodified, in part or in whole, must be distributed entirely under this license, and must not be distributed under any other license. The requirement for fonts to remain under this license does not apply to any document created using the Font Software. TERMINATION This license becomes null and void if any of the above conditions are not met. 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