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/-compressed.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

# resize images to 1920
sips -Z 1920 *.png
sips -Z 1920 *.jpg

# compress images
/Applications/ImageOptim.app/Contents/MacOS/ImageOptim *.png *.jpg *.jpeg *.svg

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"

Created a repo: https://github.com/L-U-C-K-Y/Reduce-PowerPoint-File-Size