web optimisation

webm video

a - GOOD quality ffmpeg -i INPUT.ext -c:v libvpx-vp9 -c:a libopus -r 24 -b:v 2000k -minrate 900k...

pdf conversions

convert pdf to numbered pngs, medium resolution, flatten convert -density 150 INPUT.pdf -alpha r...

images

(WiP) Reference: https://stackoverflow.com/questions/7048406/image-magick-image-optimization-fo...