IBM Plex Sans Thai
IBM Plex Sans Thai is a sans serif font in 7 weights. Its lowercase letters are 3% narrower than the typical sans serif font. Last updated 2 September 2025.
Editing a PDF that uses IBM Plex Sans Thai
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 IBM Plex Sans Thai from the widths stored in your PDF, loads the complete open font, and sets your new text in IBM Plex Sans Thai itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 505 units per 1000 em |
|---|---|
| Average capital letter width | 633.6 units per 1000 em |
| Word space | 236 units per 1000 em |
| Digits | tabular (every digit is 600 units wide, so columns of numbers line up) |
| 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 IBM Plex Sans Thai
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.
- IBM Plex Sans KR Regularidentical letter widths (0 units)
- IBM Plex Sans Thai Looped Regularidentical letter widths (0 units)
- IBM Plex Sans Arabic Regularidentical letter widths (0 units)
- IBM Plex Sans Devanagari Regularidentical letter widths (0 units)
- IBM Plex Sans Regularidentical letter widths (0 units)
- IBM Plex Sans Hebrew Regularidentical letter widths (0 units)
- Anuphan Regularidentical letter widths (0 units)
- IBM Plex Sans JP Regularsimilar widths (18.2 units)
Compare IBM Plex Sans Thai
Questions people ask
+Can I edit a PDF that uses IBM Plex Sans Thai?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in IBM Plex Sans Thai itself, loaded from the open font, so the edit matches the rest of the page.
+Is IBM Plex Sans Thai free to use?
IBM Plex Sans Thai 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 IBM Plex Sans Thai?
By measured letter widths, IBM Plex Sans KR 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 IBM Plex Sans Thai support?
It includes these character sets: Cyrillic Extended, Latin, Central European, Thai.
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