Imagick convert to resize / reduce image
Batch resize images and reduce quality
To resize to 2000px and preserve the aspect ratio:
convert my-image.jpg -resize 2000 my-image-new.jpg
To reduce quality:
convert my-image.jpg -quality 85% my-image-new.jpg
To batch reduce quality AND overwrite the original image:
find -iname *.jpg | xargs -I{} convert {} -quality 85% {}
convert my-image.jpg -resize 2000 my-image-new.jpg
To reduce quality:
convert my-image.jpg -quality 85% my-image-new.jpg
To batch reduce quality AND overwrite the original image:
find -iname *.jpg | xargs -I{} convert {} -quality 85% {}