Libertinus Math
Libertinus Math is a display font in 1 weight. Its lowercase letters are 10% narrower than the typical display font. Last updated 5 May 2026.
Editing a PDF that uses Libertinus Math
Most PDFs embed only the letters they already use. Type a new letter and many editors either refuse or swap in a different font. MythosPDF recognises Libertinus Math from the widths stored in your PDF, loads the complete open font, and sets your new text in Libertinus Math itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 469.8 units per 1000 em |
|---|---|
| Average capital letter width | 623.3 units per 1000 em |
| Word space | 250 units per 1000 em |
| Digits | tabular (every digit is 465 units wide, so columns of numbers line up) |
| Spacing | proportional |
| Width of i compared with m | 34% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Display |
Weights and styles
Open fonts closest to Libertinus Math
Measured on every printable character both fonts contain. A smaller difference means the same words take the same space, so lines break in the same places.
- Libertinus Serif Regularsimilar widths (15 units)
- Libertinus Serif Display Regularsimilar widths (25.1 units)
- Libertinus Sans Regularsimilar widths (29.4 units)
- Ponomar Regularloosely similar widths (33.6 units)
- Crimson Text Regularloosely similar widths (34.7 units)
- STIX Two Text Regularloosely similar widths (35.2 units)
- Alyamama Regularloosely similar widths (35.6 units)
- Triodion Regularloosely similar widths (35.7 units)
Compare Libertinus Math
Questions people ask
+Can I edit a PDF that uses Libertinus Math?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Libertinus Math itself, loaded from the open font, so the edit matches the rest of the page.
+Is Libertinus Math free to use?
Libertinus Math is released under the SIL Open Font License 1.1, an open licence that allows free use in documents, including commercial ones. Check the licence text for your exact use.
+Which font is closest to Libertinus Math?
By measured letter widths, Libertinus Serif is the closest match among open fonts (a mean difference of 15 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Libertinus Math support?
It includes these character sets: Latin.
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