Ruluko
Ruluko is a sans serif font in 1 weight. Its lowercase letters are 10% narrower than the typical sans serif font. Last updated 16 September 2025.
Editing a PDF that uses Ruluko
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 Ruluko from the widths stored in your PDF, loads the complete open font, and sets your new text in Ruluko itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 466 units per 1000 em |
|---|---|
| Average capital letter width | 566.7 units per 1000 em |
| Word space | 210 units per 1000 em |
| Digits | tabular (every digit is 550 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 | Sans serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Ruluko
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.
- Mukta Vaani Regularloosely similar widths (32.3 units)
- Mukta Regularloosely similar widths (32.3 units)
- Signika Negative Regularloosely similar widths (33.8 units)
- Signika Regularloosely similar widths (34.3 units)
- PT Sans Regularloosely similar widths (35.7 units)
- Mukta Mahee Regularloosely similar widths (35.9 units)
- Arya Regularloosely similar widths (39 units)
- Georama Regularloosely similar widths (39.1 units)
Compare Ruluko
Questions people ask
+Can I edit a PDF that uses Ruluko?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Ruluko itself, loaded from the open font, so the edit matches the rest of the page.
+Is Ruluko free to use?
Ruluko 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 Ruluko?
By measured letter widths, Mukta Vaani is the closest match among open fonts (a mean difference of 32.3 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Ruluko support?
It includes these character sets: Latin, Central European.
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