PT Serif Caption
PT Serif Caption is a serif font in 1 weight with italics. Its lowercase letters are 9% wider than the typical serif font. Last updated 10 September 2025.
Editing a PDF that uses PT Serif Caption
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 PT Serif Caption from the widths stored in your PDF, loads the complete open font, and sets your new text in PT Serif Caption itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 565.9 units per 1000 em |
|---|---|
| Average capital letter width | 721.7 units per 1000 em |
| Word space | 274 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 | 35% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to PT Serif Caption
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.
- Noto Serif JP Regularsimilar widths (29.1 units)
- Noto Serif TC Regularsimilar widths (29.1 units)
- Noto Serif KR Regularsimilar widths (29.1 units)
- Noto Serif HK Regularsimilar widths (29.1 units)
- Noto Serif SC Regularsimilar widths (29.1 units)
- IBM Plex Serif Regularloosely similar widths (31.1 units)
- Idiqlat Regularloosely similar widths (31.5 units)
- PT Serif Regularloosely similar widths (33.3 units)
Compare PT Serif Caption
Questions people ask
+Can I edit a PDF that uses PT Serif Caption?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in PT Serif Caption itself, loaded from the open font, so the edit matches the rest of the page.
+Is PT Serif Caption free to use?
PT Serif Caption 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 PT Serif Caption?
By measured letter widths, Noto Serif JP is the closest match among open fonts (a mean difference of 29.1 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does PT Serif Caption support?
It includes these character sets: Cyrillic, Cyrillic Extended, Latin, Central European.
Ready to fix your PDF?
Free, in your browser, and it takes about a minute. No account needed.