Frank Ruhl Libre
Frank Ruhl Libre is a serif font in 7 weights, also available as a variable font. Its lowercase letters are 5% narrower than the typical serif font. Last updated 10 September 2025.
Editing a PDF that uses Frank Ruhl Libre
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 Frank Ruhl Libre from the widths stored in your PDF, loads the complete open font, and sets your new text in Frank Ruhl Libre itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 493 units per 1000 em |
|---|---|
| Average capital letter width | 635.2 units per 1000 em |
| Word space | 239 units per 1000 em |
| Digits | proportional (digit widths differ) |
| Spacing | proportional |
| Width of i compared with m | 35% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Frank Ruhl Libre
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.
- Source Serif Pro Regularsimilar widths (25.7 units)
- Cactus Classical Serif Regularsimilar widths (25.8 units)
- Song Myung Regularsimilar widths (26.2 units)
- Averia Gruesa Libre Regularsimilar widths (27.8 units)
- Averia Libre Regularsimilar widths (28.4 units)
- PT Serif Regularloosely similar widths (30.1 units)
- Shanti Regularloosely similar widths (30.2 units)
- DM Serif Text Regularloosely similar widths (30.6 units)
Compare Frank Ruhl Libre
Questions people ask
+Can I edit a PDF that uses Frank Ruhl Libre?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Frank Ruhl Libre itself, loaded from the open font, so the edit matches the rest of the page.
+Is Frank Ruhl Libre free to use?
Frank Ruhl Libre 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 Frank Ruhl Libre?
By measured letter widths, Source Serif Pro is the closest match among open fonts (a mean difference of 25.7 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Frank Ruhl Libre support?
It includes these character sets: Hebrew, Latin, Central European.
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