Aqui está uma imagem SVG da Wikipedia:
(Versão para download: https://upload.wikimedia.org/wikipedia/commons/3/3d/CH-Hinweissignal-Wegweiser_f%C3%BCr_Hauptstrassen.svg )
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Os comandos a seguir o convertem com êxito em PNGs de 2.000 × 493 e 406 × 100 pixels, respectivamente:
inkscape -w 2000 input.svg -o output.pnginkscape -h 100 input.svg -o output.png
Mas se eu especificar largura e altura ( -w 2000 -h 100), ambos os valores serão usados com força e, portanto, a imagem resultante será distorcida (2.000 × 100 px).
É possível especificá-los de forma que sejam aplicados como uma "caixa", ou seja,
inkscape -w 2000 -h 100 input.svg -o output.pngdeve resultar em imagem de 2.000 × 493 pxinkscape -w 100 -h 2000 input.svg -o output.pngdeve resultar em imagem de 100×25 px
A partir de 2024, o Inkscape não tem opção de manter a proporção original (de acordo com esta edição ).
Em vez disso, use
A saída não será maior que 2.000px, nem maior que 100px e não será "esticada" ou "comprimida".