ImageMagick Simultaneously Convert To Multiple Resolutions

imagemagick-convert-multiple-resolutions.md

convert gw-original-1400.png -write mpr:img +delete \( mpr:img -resize 1280x +write gw-1280.png \) \( mpr:img -resize 1024x +write gw-1024.png \) \( mpr:img -resize 512x +write gw-512.png \) \( mpr:img -resize 500x +write gw-500.png \) \( mpr:img -resize 300x +write gw-300.png \) \( mpr:img -resize 256x +write gw-256.png \) \( mpr:img -resize 160x +write gw-160.png \) \( mpr:img -resize 128x +write gw-128.png \) \( mpr:img -resize 100x +write gw-100.png \) \( mpr:img -resize 90x +write gw-90.png \) \( mpr:img -resize 80x +write gw-80.png \) \( mpr:img -resize 64x +write gw-64.png \) \( mpr:img -resize 50x +write gw-50.png \) \( mpr:img -resize 40x +write gw-40.png \) \( mpr:img -resize 32x +write gw-32.png \) \( mpr:img -resize 16x +write gw-16.png \) null:
h