Red Hat Mono
Red Hat Mono is a monospace font in 5 weights with italics, also available as a variable font. Its lowercase letters are about as wide as the typical monospace font. Last updated 10 September 2025.
Editing a PDF that uses Red Hat Mono
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 Red Hat Mono from the widths stored in your PDF, loads the complete open font, and sets your new text in Red Hat Mono itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 600 units per 1000 em |
|---|---|
| Average capital letter width | 600 units per 1000 em |
| Word space | 600 units per 1000 em |
| Digits | tabular (every digit is 600 units wide, so columns of numbers line up) |
| Spacing | monospaced |
| Width of i compared with m | 100% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Monospace |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Red Hat Mono
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.
- Maple Mono Regularidentical letter widths (0 units)
- Geist Mono Regularidentical letter widths (0 units)
- Google Sans Code Regularidentical letter widths (0 units)
- Hibur Mono Regularidentical letter widths (0 units)
- IBM Plex Mono Regularidentical letter widths (0 units)
- JetBrains Mono Regularidentical letter widths (0 units)
- Doto Regularidentical letter widths (0 units)
- Fira Code Regularidentical letter widths (0 units)
Compare Red Hat Mono
Questions people ask
+Can I edit a PDF that uses Red Hat Mono?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Red Hat Mono itself, loaded from the open font, so the edit matches the rest of the page.
+Is Red Hat Mono free to use?
Red Hat Mono 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 Red Hat Mono?
By measured letter widths, Maple Mono is the closest match among open fonts (a mean difference of 0 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Red Hat Mono support?
It includes these character sets: Latin, Central European.
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