Readex Pro
Readex Pro is a sans serif font in 6 weights, also available as a variable font. Its lowercase letters are 5% wider than the typical sans serif font. Last updated 10 September 2025.
Editing a PDF that uses Readex Pro
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 Readex Pro from the widths stored in your PDF, loads the complete open font, and sets your new text in Readex Pro itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 545.4 units per 1000 em |
|---|---|
| Average capital letter width | 700.3 units per 1000 em |
| Word space | 280 units per 1000 em |
| Digits | proportional (digit widths differ) |
| Spacing | proportional |
| Width of i compared with m | 30% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Sans serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Readex Pro
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.
- Lexend Deca Regularnearly identical widths (1 units)
- Lextrall Regularnearly identical widths (1 units)
- Lexend Regularnearly identical widths (1 units)
- Quicksand Regularsimilar widths (26.7 units)
- Golos Text Regularloosely similar widths (33.8 units)
- Onest Regularloosely similar widths (33.9 units)
- Wix Madefor Text Regularloosely similar widths (34.2 units)
- Roboto Serif Regularloosely similar widths (34.2 units)
Compare Readex Pro
Questions people ask
+Can I edit a PDF that uses Readex Pro?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Readex Pro itself, loaded from the open font, so the edit matches the rest of the page.
+Is Readex Pro free to use?
Readex Pro 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 Readex Pro?
By measured letter widths, Lexend Deca is the closest match among open fonts (a mean difference of 1 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Readex Pro support?
It includes these character sets: Arabic, Latin, Central European, Vietnamese.
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