Caudex
Caudex is a serif font in 2 weights with italics. Its lowercase letters are about as wide as the typical serif font. Last updated 5 September 2025.
Editing a PDF that uses Caudex
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 Caudex from the widths stored in your PDF, loads the complete open font, and sets your new text in Caudex itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 511.3 units per 1000 em |
|---|---|
| Average capital letter width | 683.8 units per 1000 em |
| Word space | 268.6 units per 1000 em |
| Digits | tabular (every digit is 537.1 units wide, so columns of numbers line up) |
| Spacing | proportional |
| Width of i compared with m | 33% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Caudex
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.
- Prociono Regularloosely similar widths (37.6 units)
- Averia Serif Libre Regularloosely similar widths (37.7 units)
- Libertinus Sans Regularloosely similar widths (38.5 units)
- Fjord One Regularloosely similar widths (40.7 units)
- Newsreader Regularloosely similar widths (41.2 units)
- Ysabeau Office Regularloosely similar widths (41.9 units)
- Funnel Sans Regularloosely similar widths (41.9 units)
- Libertinus Serif Regularloosely similar widths (42 units)
Compare Caudex
Questions people ask
+Can I edit a PDF that uses Caudex?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Caudex itself, loaded from the open font, so the edit matches the rest of the page.
+Is Caudex free to use?
Caudex 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 Caudex?
By measured letter widths, Prociono is the closest match among open fonts (a mean difference of 37.6 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Caudex support?
It includes these character sets: Greek, Greek Extended, Latin, Central European, Runic, Vietnamese.
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