Read Me

# Source™ Sans Pro

This document contains late-breaking product information, updates, and troubleshooting tips.
Minimum system requirements
Font installation
Family information
Release Notes
Acknowledgements
Known issues
Customer care
Other resources

## Minimum system requirements

Windows®

- Intel® Pentium,® Intel Centrino,® Intel Xeon,® or Intel Core™ Duo processor
- Microsoft Windows 2000, Windows XP, Windows Vista™, or Windows 7
- 16 MB of RAM (32 MB recommended)
- Note: Fonts from Font Folio 11 may also be installed under Microsoft Windows 98, Windows Millennium Edition, and Windows NT® 4.0 with Service Pack 4 if you install Adobe Type Manager® (ATM™) Light 4.1 on your system. If using a PostScript® printer on Windows 98/ME, AdobePS™ printer driver 4.3 or later is recommended. If using a PostScript printer on Windows NT 4.0, AdobePS printer driver 5.1.2 or later is recommended.

Macintosh

- PowerPC® G4 or G5 or multicore Intel processor
- Mac OS X
- 16 MB of RAM (32 MB recommended)
- If using a PostScript printer, the latest AdobePS printer driver is recommended.
- Note: Fonts from Font Folio 11 may be installed under Mac OS 8.6 through 9.2 with ATM Light 4.6, and under Classic mode in Mac OS X with ATM Light 4.6.2.

## Font installation

For information on installing these fonts, see http://www.adobe.com/go/learn_fontinstall_en.

## Family information

History

Source Sans Pro was designed by Paul D. Hunt as Adobe's first open source typeface family, conceived primarily as a typeface for user interfaces. Source Sans Pro draws inspiration from the clarity and legibility of twentieth-century American gothic typeface designs. Distilling the best archetypical qualities of these models, Paul followed a rational design approach by simplifying glyph shapes by paring them to their essential form. However, in order to more easily differentiate similar letter shapes (such as uppercase I and lowercase L), some additional details have been added. Besides providing such explicitly clarity in short text strings, another fundamental design consideration was to create a typeface that reads well in extended settings. This can be seen in the general proportions: Source Sans Pro has been designed with a more generous width than many other comparable gothics, and its shorter majuscule letters, combined with minuscule letters with longer extenders, create a more pleasant reading texture in longer text passages.
Source Sans Pro currently supports a wide range of languages using the Latin script, and includes all the characters in the Adobe Latin 4 glyph set. As an open source project, it is expected that incremental updates will be made over time to extend glyph set coverage and functionality. Future releases are expected to add support for Greek and Cyrillic scripts, a related monowidth family, and other features documented on the project page at Open@Adobe, which is hosted by SourceForge.net®. If you are interested in contributing to this open source project, please visit this project page for information on how to become involved. Source Sans Pro can be adapted and redistributed according to the terms of the Open Font License (OFL) agreement.

Menu Names And Style Linking

In many Windows® applications, instead of every font appearing on the menu, fonts are grouped into style-linked sets, and only the name of the base style font for a set is shown in the menu. The italic and the bold weight fonts of the set (if any) are not shown in the font menu, but can still be accessed by selecting the base style font, and then using the italic and bold style buttons. In this family, such programs will show only the following base style font names in the menu:

Source Sans Pro
Source Sans Pro Black
Source Sans Pro ExtraLight
Source Sans Pro Light
Source Sans Pro Semibold

The other fonts in this family must be selected by choosing a menu name and then a style option following the guide below.

Menu Name |  | plus Style Option... |  | selects this font
Source Sans Pro |  | [none] |  | Source Sans Pro Regular
Source Sans Pro |  | Italic |  | Source Sans Pro Italic
Source Sans Pro |  | Bold |  | Source Sans Pro Bold
Source Sans Pro |  | Bold, Italic |  | Source Sans Pro Bold Italic
Source Sans Pro ExtraLight |  | [none] |  | Source Sans Pro ExtraLight
Source Sans Pro ExtraLight |  | Italic |  | Source Sans Pro ExtraLight Italic
Source Sans Pro Light |  | [none] |  | Source Sans Pro Light
Source Sans Pro Light |  | Italic |  | Source Sans Pro Light Italic
Source Sans Pro Semibold |  | [none] |  | Source Sans Pro Semibold
Source Sans Pro Semibold |  | Italic |  | Source Sans Pro Semibold Italic
Source Sans Pro Black |  | [none] |  | Source Sans Pro Black
Source Sans Pro Black |  | Italic |  | Source Sans Pro Black Italic

On the Mac OS, although each font appears as a separate entry on the font menu, users may also select fonts by means of style links. Selecting a base style font and then using the style links (as described above for Windows) enhances cross-platform document compatibility with many applications, such as Microsoft® Word and Adobe PageMaker®, although it is unnecessary with more sophisticated Adobe applications such as recent versions of Illustrator®, Photoshop® or InDesign®.

One should not, however, select a base font which has no style-linked variant, and then use the bold or italic styling button. Doing so will either have no effect, or result in programmatic bolding or slanting of the base font, which will usually produce inferior screen and print results.

## Release Notes

For all fonts of family Source Sans Pro : version 1.050 created on Tue Apr 16 16:43:33 2013.

version 1.050 created 2013/04/15

- [TrueType] Coordinated the vertical alignment of the tops of the letters across all the styles at the various sizes. (GitHub issue #25)

version 1.040 created 2013/04/08

- Adds Zero_Width_Non_Breaking_Space character (ZWNBS, U+FEFF) to address GitHub issue #20.

version 1.038 created 2012/10/15

- Updates the metrics of Majuscule letters in lighter weights.
- Updates fonts to add small capitals and superior capital letters to upright styles.
- Adds the following characters for transliteration: Blinebelow, blinebelow, Klinebelow klinebelow, Emacronacute, emacronacute, Omacronacute, omacronacute, primemod
- Adds the following punctuation characters: bardbl, iterrobang, ceilingleft, ceilingright, floorleft floorright, bracketleftwhite, bracketrightwhite, brackhalftopleft, brackhalftopright, brackhalfbotleft, brackhalfbotright
- Adds dotted zero and slashed zero.

version 1.036 created 2012/09/12

- Updates fonts to fix bug in TTF versions in which the GDEF table was not included.

version 1.035 created 2012/09/10

- Updates the fitting for 'u' and its related glyphs. Updates the kerning in the upright fonts.

version 1.034 created 2012/08/15

- Improved sidebearings of some glyphs, improved kerning classes, improved some kern pairs.
- Fixed metrics issues with upright letter D and composites.
- Added glyphs and OT feature support for Jarai language.
- Added 'ordfeminine' glyph to 'ss02' feature.
- Changed glyph name 'schwa.supss' to 'uni0259.sups'.
- Changed weightClass value of the ExtraLight fonts from 250 to 200.
- Changed OS/2.usWinAscent and OS/2.usWinDescent values to be the same across all fonts.
- Changed hhea.Ascender and hhea.Descender values as a result of the OS/2usWin changes.
- Changed OS/2 table version number from 4 to 3.
- Harmonized the copyright strings.

version 1.033 created 2012/07/31

- First release.

## Acknowledgements

- Thanks to Logos Bible Software for supporting development of small capitals and superior capitals. http://www.logos.com

## Known issues

- Some glyphs in the font cannot be accessed unless you are using an OpenType-savvy application.

## Customer care

Customer Service
Adobe Customer Service provides assistance with product information, sales, registration, and other non-technical issues. To find out how to contact Adobe Customer Service, please visit Adobe.com for your region or country and click on Contact.

Support Plan Options and Technical Resources
If you require technical assistance for your product, including information on free and paid support options and troubleshooting resources, more information is available at http://www.adobe.com/go/support/. Outside of North America, go to http://www.adobe.com/go/intlsupport/. Free troubleshooting resources include Adobe’s support knowledgebase, Adobe user-to-user forums and more.

## Other resources

Online Resources
Adobe Type Showroom
Adobe Type Showroom - all current Read-Me files for our font families
User Forums

© 2012 Adobe Systems Incorporated. All rights reserved.