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ImageMagick SVG to PNG resolution gotcha

context

Re-rendering an SVG logo to a PNG asset to match an existing higher-resolution version.

thoughts

ImageMagick rasterizes an SVG at the SVG declared width/height by default, so magick logo.svg out.png produces e.g. 1024x1024 even when the existing reference PNG is 2048x2048. The default render density is 72 DPI — pass -density 288 (or similar) before the SVG input to upsample, then optionally -resize WxH to lock the target dimensions.

next time

Always run magick identify on both the source and the existing reference PNG before re-rendering, and set -density proportional to the target resolution whenever the input is an SVG.

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