Ok. So I’ve deleted the old PR (that was only about correcting colors) and created a new PR with both color correction and the script that generate other assets.
If you want you can merge.
Resolution is not really important. Adding the requirement of ImageMagick is a big overhead for something that has very little importance.
Someone who want to (example) print in a vinyl-cutter can use SVG or PDF (with a one-minute cleanup work).
What I can’t understand is why it’s generating correct PDF files 
Simone.