Compress PPTX

README.md

Found on http://mybyways.com/blog/fixing-powerpoint-tiff-images-and-fonts

compress_pptx.sh

#!/bin/bash
if [[ -z $1 ]]; then echo $0 input_pptx [output_pptx]; exit; fi
if [[ ! -f $1 ]]; then echo File $1 not found; exit; fi
if [[ -z $2 ]]; then out=${1/.pptx/.[FIX].pptx}; else out=$2; fi
[[ -d xtractd ]] && rm -i -r xtractd
[[ -f $out ]] && rm -i "$out"
unzip "$1" -d xtractd
cd xtractd/ppt/media
for x in *.tiff; do sips -s format png $x --out ${x/.tiff/.png}; done
rm *.tiff
#/Applications/ImageOptim.app/Contents/MacOS/ImageOptim *.png *.jpg *.jpeg
cd ..
sed -i '' -e 's/\(Target="[^"]*\)tiff"/\1png"/g' slides/_rels/*.rels
sed -i '' -e 's/\(typeface="\)[^"]*"/\1Calibri"/g' slides/*.xml notesSlides/*.xml slideLayouts/*.xml slideMasters/*.xml
cd ..
zip -r "../$out" *
cd ..
rm -r xtractd
open "$out"