Stack Sans Headline
Stack Sans Headline is a sans serif font in 6 weights, also available as a variable font. Its lowercase letters are about as wide as the typical sans serif font. Last updated 4 November 2025.
Editing a PDF that uses Stack Sans Headline
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 Stack Sans Headline from the widths stored in your PDF, loads the complete open font, and sets your new text in Stack Sans Headline itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 531.7 units per 1000 em |
|---|---|
| Average capital letter width | 633.3 units per 1000 em |
| Word space | 205 units per 1000 em |
| Digits | proportional (digit widths differ) |
| Spacing | proportional |
| Width of i compared with m | 25% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Sans serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Stack Sans Headline
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.
- Stack Sans Notch Regularnearly identical widths (0.5 units)
- Stack Sans Text Regularsimilar widths (19.6 units)
- Exo Regularloosely similar widths (33.5 units)
- Bricolage Grotesque Regularloosely similar widths (33.9 units)
- Public Sans Regularloosely similar widths (34 units)
- Libre Franklin Regularloosely similar widths (35.7 units)
- Pretendard Regularloosely similar widths (36.3 units)
- Chakra Petch Regularloosely similar widths (36.3 units)
Compare Stack Sans Headline
Questions people ask
+Can I edit a PDF that uses Stack Sans Headline?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Stack Sans Headline itself, loaded from the open font, so the edit matches the rest of the page.
+Is Stack Sans Headline free to use?
Stack Sans Headline 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 Stack Sans Headline?
By measured letter widths, Stack Sans Notch is the closest match among open fonts (a mean difference of 0.5 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Stack Sans Headline support?
It includes these character sets: Latin, Central European.
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