Rubik
Rubik is a sans serif font in 7 weights with italics, also available as a variable font. Its lowercase letters are about as wide as the typical sans serif font. Last updated 10 September 2025.
Editing a PDF that uses Rubik
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 Rubik from the widths stored in your PDF, loads the complete open font, and sets your new text in Rubik itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 530.8 units per 1000 em |
|---|---|
| Average capital letter width | 643.3 units per 1000 em |
| Word space | 245 units per 1000 em |
| Digits | proportional (digit widths differ) |
| Spacing | proportional |
| Width of i compared with m | 27% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Sans serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Rubik
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.
- Bai Jamjuree Regularsimilar widths (28.1 units)
- Chakra Petch Regularsimilar widths (29.1 units)
- Mozilla Headline Regularloosely similar widths (31.1 units)
- Scoutie Sans Regularloosely similar widths (31.3 units)
- Geist Regularloosely similar widths (31.4 units)
- Onest Regularloosely similar widths (32.1 units)
- Geist Sans Regularloosely similar widths (32.4 units)
- Radio Canada Big Regularloosely similar widths (32.6 units)
Compare Rubik
Questions people ask
+Can I edit a PDF that uses Rubik?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Rubik itself, loaded from the open font, so the edit matches the rest of the page.
+Is Rubik free to use?
Rubik 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 Rubik?
By measured letter widths, Bai Jamjuree is the closest match among open fonts (a mean difference of 28.1 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Rubik support?
It includes these character sets: Arabic, Cyrillic, Cyrillic Extended, Hebrew, Latin, Central European.
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