Source Serif
open-source serif typeface
Source Serif (known as Source Serif Pro before 2021) is a serif typeface created by Frank Grießhammer for Adobe Systems. It is the third open-source font family from Adobe, distributed under the SIL Open Font License.
The typeface is inspired by the forms of Pierre Simon Fournier and is a complementary design to the Source Sans family. It is available in six weights in upright styles and italics, and five optical sizes. It is also available as a variable font with continuous weights from 200 to 900.
The first version, named "Source Serif Pro", was released in 2014. Version 2.0 was released in 2017 and introduced support for more Latin characters, Cyrillic, and Greek. In 2018, Latin italics were added in version "2.007R-ro/1.007R-it". In 2019, Greek and Cyrillic italic were added in version "3.000R". In 2021, a new release added optical sizes; the name "Pro" was dropped at this point.
The public source identifies “Source Serif” as open-source serif typeface. This brief keeps that definition visible, then builds a research path around Source, Serif and open-source.
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A short description can identify a subject without explaining its stakes. For “Source Serif”, the useful work is to connect “open-source serif typeface” to the records capable of establishing context and consequence.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated May 25, 2026. The linked authority identifier is Q20829068. 1 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2021, 2014, 2017 and 2018.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
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- Expand the search: follow Source Serif primary sources, Source Serif archive and Source research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “Source Serif” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.