Source Serif 4 vs Source Serif Pro
Source Serif Pro is about 7% narrower than Source Serif 4 in lowercase text, so a paragraph set in one will break lines differently in the other.
Handgloves 2026
Handgloves 2026
| Source Serif 4 | Source Serif Pro | |
|---|---|---|
| Category | Serif | Serif |
| Weights | ExtraLight, Light, Regular, Medium, SemiBold, Bold, ExtraBold, Black | ExtraLight, Light, Regular, SemiBold, Bold, Black |
| Italics | Yes | Yes |
| Variable font | Yes | No |
| Average lowercase width | 550.7 | 510.3 |
| Digits | tabular | tabular |
| Character sets | 6 | 6 |
| Licence | SIL Open Font License 1.1 | SIL Open Font License 1.1 |
Weights both families offer: ExtraLight, Light, Regular, SemiBold, Bold, Black.
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Questions people ask
+Is Source Serif Pro a good replacement for Source Serif 4?
Source Serif Pro is about 7% narrower than Source Serif 4 in lowercase text, so a paragraph set in one will break lines differently in the other. Their mean width difference is 22.7 units per 1000 em (similar widths).
+Which is wider, Source Serif 4 or Source Serif Pro?
Source Serif 4 is wider, by about 7% in lowercase text.
+Do both support the same languages?
Both cover Cyrillic, Cyrillic Extended, Greek, Latin, Central European, Vietnamese.
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