What does SVG to PNG high resolution actually scale?

The PNG pixel size is 4× the viewBox (or content aspect). Vectors stay crisp; you are not photographing a screenshot.

How is high-res different from retina PNG or 2× scale?

High-res is 4×. Retina PNG uses 3×. 2× scale is the @2x asset size.

Very large viewBoxes can. If the canvas is already 2000px, try Custom Size instead of 4×.

Yes. The canvas is cleared before drawImage — no white plate unless your SVG paints one.

FAQ

Quick answers

What does SVG to PNG high resolution actually scale?: The PNG pixel size is 4× the viewBox (or content aspect). Vectors stay crisp; you are not photographing a screenshot.
How is high-res different from retina PNG or 2× scale?: High-res is 4×. Retina PNG uses 3×. 2× scale is the @2x asset size.
Will a huge 4× PNG freeze the tab?: Very large viewBoxes can. If the canvas is already 2000px, try Custom Size instead of 4×.
Is the high-res PNG transparent?: Yes. The canvas is cleared before drawImage — no white plate unless your SVG paints one.

Retina PNG → 2× PNG → 512px PNG → Custom-size PNG →

Source

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React component

React Native (react-native-svg)

PNG export · 2× for retina

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