Assistant
Assistant is a sans serif font in 7 weights, also available as a variable font. Its lowercase letters are 9% narrower than the typical sans serif font. Last updated 8 September 2025.
Editing a PDF that uses Assistant
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 Assistant from the widths stored in your PDF, loads the complete open font, and sets your new text in Assistant itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 469.9 units per 1000 em |
|---|---|
| Average capital letter width | 565 units per 1000 em |
| Word space | 200 units per 1000 em |
| Digits | proportional (digit widths differ) |
| Spacing | proportional |
| Width of i compared with m | 29% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Sans serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Assistant
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.
- Varta Regularnearly identical widths (3.4 units)
- Source Sans 3 Regularvery close widths (5.4 units)
- Mada Regularvery close widths (5.4 units)
- Source Sans Pro Regularvery close widths (5.4 units)
- Akatab Regularsimilar widths (18.1 units)
- Tirra Regularsimilar widths (18.1 units)
- Chiron Hei HK Regularsimilar widths (24.5 units)
- IBM Plex Sans Condensed Regularsimilar widths (25.8 units)
Compare Assistant
Questions people ask
+Can I edit a PDF that uses Assistant?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Assistant itself, loaded from the open font, so the edit matches the rest of the page.
+Is Assistant free to use?
Assistant 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 Assistant?
By measured letter widths, Varta is the closest match among open fonts (a mean difference of 3.4 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Assistant support?
It includes these character sets: Hebrew, Latin, Central European.
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