SVG to PNG size and scale explained
How intrinsic width/height and viewBox set the 1× baseline, plus tips for scale vs fixed width.
If the SVG has width/height attributes, those become the 1× baseline.
With only a viewBox, the viewBox width/height are used instead.
If neither is present, we fall back to 1024×1024 — switch to “By width” to set pixels.
Output edges are capped at 8192 px; lower the scale or width if you hit the limit.