Rethink Sans
Rethink Sans is a sans serif font in 5 weights with italics, also available as a variable font. Its lowercase letters are about as wide as the typical sans serif font. Last updated 5 September 2025.
Editing a PDF that uses Rethink Sans
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 Rethink Sans from the widths stored in your PDF, loads the complete open font, and sets your new text in Rethink Sans itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 520.7 units per 1000 em |
|---|---|
| Average capital letter width | 633.1 units per 1000 em |
| Word space | 265 units per 1000 em |
| Digits | tabular (every digit is 600 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 Rethink Sans
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.
- DM Sans Regularsimilar widths (16.4 units)
- Fustat Regularloosely similar widths (34.6 units)
- Host Grotesk Regularloosely similar widths (35 units)
- Albert Sans Regularloosely similar widths (35.6 units)
- Figtree Regularloosely similar widths (35.8 units)
- Livvic Regularloosely similar widths (37 units)
- ABeeZee Regularloosely similar widths (37.1 units)
- Parkinsans Regularloosely similar widths (37.6 units)
Compare Rethink Sans
Questions people ask
+Can I edit a PDF that uses Rethink Sans?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Rethink Sans itself, loaded from the open font, so the edit matches the rest of the page.
+Is Rethink Sans free to use?
Rethink Sans 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 Rethink Sans?
By measured letter widths, DM Sans is the closest match among open fonts (a mean difference of 16.4 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Rethink Sans support?
It includes these character sets: Latin, Central European.
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