Arimo
Arimo is a sans serif font in 4 weights with italics, also available as a variable font. Its lowercase letters are 6% narrower than the typical sans serif font. Last updated 18 May 2026.
Editing a PDF that uses Arimo
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 Arimo from the widths stored in your PDF, loads the complete open font, and sets your new text in Arimo itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 489.5 units per 1000 em |
|---|---|
| Average capital letter width | 677.4 units per 1000 em |
| Word space | 277.8 units per 1000 em |
| Digits | tabular (every digit is 556.1 units wide, so columns of numbers line up) |
| 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 Arimo
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.
- Archivo Regularsimilar widths (18.9 units)
- Ramabhadra Regularsimilar widths (25.3 units)
- Istok Web Regularloosely similar widths (30.1 units)
- Questrial Regularloosely similar widths (33.2 units)
- Heebo Regularloosely similar widths (33.9 units)
- Roboto Regularloosely similar widths (34.3 units)
- Vazirmatn Regularloosely similar widths (35.7 units)
- Almarai Regularloosely similar widths (36.3 units)
Compare Arimo
Questions people ask
+Can I edit a PDF that uses Arimo?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Arimo itself, loaded from the open font, so the edit matches the rest of the page.
+Is Arimo free to use?
Arimo 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 Arimo?
By measured letter widths, Archivo is the closest match among open fonts (a mean difference of 18.9 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Arimo support?
It includes these character sets: Cyrillic, Cyrillic Extended, Greek, Greek Extended, Hebrew, Latin, Central European, Vietnamese.
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