Prompt
Prompt is a sans serif font in 9 weights with italics. Its lowercase letters are 6% wider than the typical sans serif font. Last updated 2 September 2025.
Editing a PDF that uses Prompt
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 Prompt from the widths stored in your PDF, loads the complete open font, and sets your new text in Prompt itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 551.9 units per 1000 em |
|---|---|
| Average capital letter width | 661.2 units per 1000 em |
| Word space | 370 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 Prompt
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.
- Mitr Regularloosely similar widths (30.4 units)
- Reddit Sans Regularloosely similar widths (34.7 units)
- Kanit Regularloosely similar widths (37.8 units)
- Google Sans Regularloosely similar widths (38.5 units)
- Kumbh Sans Regularloosely similar widths (39.7 units)
- Raleway Regularloosely similar widths (40.3 units)
- Schibsted Grotesk Regularloosely similar widths (40.4 units)
- Stack Sans Headline Regularloosely similar widths (40.4 units)
Compare Prompt
Questions people ask
+Can I edit a PDF that uses Prompt?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Prompt itself, loaded from the open font, so the edit matches the rest of the page.
+Is Prompt free to use?
Prompt 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 Prompt?
By measured letter widths, Mitr is the closest match among open fonts (a mean difference of 30.4 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Prompt support?
It includes these character sets: Latin, Central European, Thai, Vietnamese.
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