I think it's better to use a makefile and ImageMagick to integrate this into a build chain. You get something like: img@2x.png: img.ai convert img.ai i

I think it's better to use a makefile and ImageMagick to integrate this into a build chain. You get something like: img@2x.png: img.ai convert img.ai img@2x.png img.png: img@2x.png convert img@2x.png -resize '50%' img.png