Powerpoint compressor

pptx-compress-video-1080.sh

#!/bin/bash

for pptName in ./*.pptx; do
	mkdir "${pptName}_folder"
	cd "${pptName}_folder"
	unzip "../$pptName"
	cd ppt/media
	if [ -f "media1.mp4" ]; then
		for filename in ./*.mp4; do
		    ffmpeg -i "$filename" -vf scale=1920:1080 -strict -2 -c:v libx264 -crf 30 -preset slow "${filename}_small.mp4"; cat "${filename}_small.mp4" > "$filename"; rm "${filename}_small.mp4"
		    #ffmpeg -i "$filename" -vf scale=1280:720 -strict -2 -c:v libx264 -crf 30 -preset slow "${filename}_small.mp4"; cat "${filename}_small.mp4" > "$filename"; rm "${filename}_small.mp4"
		done
	fi
	cd ../../
	NEW_FILE=$(basename "${pptName}" .pptx)
	zip -r "../${NEW_FILE}_small.pptx" ./*
	# zip -r "../${pptName}_small_720.pptx" ./*
	cd ..
	rm -rf  "${pptName}_folder"
done

pptx-compress-video-720.sh

#!/bin/bash

for pptName in ./*.pptx; do
	mkdir "${pptName}_folder"
	cd "${pptName}_folder"
	unzip "../$pptName"
	cd ppt/media
	if [ -f "media1.mp4" ]; then
		for filename in ./*.mp4; do
		    ffmpeg -i "$filename" -vf scale=1280:720 -strict -2 -c:v libx264 -crf 30 -preset slow "${filename}_small.mp4"; cat "${filename}_small.mp4" > "$filename"; rm "${filename}_small.mp4"
		done
	fi
	cd ../../
	NEW_FILE=$(basename "${pptName}" .pptx)
	zip -r "../${NEW_FILE}_small_720.pptx" ./*
	cd ..
	rm -rf  "${pptName}_folder"
done

pttx-image-compressor.sh

#!/bin/bash

for pptName in ./*.pptx; do
	mkdir "${pptName}_folder"
	cd "${pptName}_folder"
	unzip "../$pptName"
	cd ppt/media


	jpgExists=`ls -1 *.jpeg 2>/dev/null | wc -l`
	if [ $jpgExists != 0 ]; then
		for filename in ./*.jpeg; do
			IMAGE_NAME=$(basename "$filename" .jpeg)
		    echo "Converting ${filename}"
		    convert -quality 90% -resize 1920x1080 "$filename" "${IMAGE_NAME}.jpeg"
		done
	fi


	tiffExists=`ls -1 *.tiff 2>/dev/null | wc -l`
	if [ $tiffExists != 0 ]; then
		for filename in ./*.tiff; do
			IMAGE_NAME=$(basename "$filename" .tiff)
		    echo "Converting ${filename}"
		    convert -quality 90% -resize 1920x1080 "$filename" "${IMAGE_NAME}.jpeg"
		    rm "${filename}"
		done
	fi
	pngExists=`ls -1 *.png 2>/dev/null | wc -l`
	if [ $pngExists != 0 ]; then
		for filename in ./*.png; do
			IMAGE_NAME=$(basename "$filename" .png)
		    echo "Converting ${filename}"
		    convert -quality 90% -resize 1920x1080 "$filename" "${IMAGE_NAME}.jpeg"
		    rm "${filename}"
		done
	fi

	jpgExists=`ls -1 *.jpg 2>/dev/null | wc -l`
	if [ $jpgExists != 0 ]; then
		for filename in ./*.jpg; do
			IMAGE_NAME=$(basename "$filename" .jpg)
		    echo "Converting ${filename}"
		    convert -quality 90% -resize 1920x1080 "$filename" "${IMAGE_NAME}.jpeg"
		    rm "${filename}"
		done
	fi


	cd ../slides/_rels
	for filename in ./*.rels; do
		sed -i 's/\.tiff/.jpeg/g' $filename
		sed -i 's/\.png/.jpeg/g' $filename
		sed -i 's/\.jpg/.jpeg/g' $filename
	done


	cd ../../..
	NEW_FILE=$(basename "${pptName}" .pptx)
	zip -r "../${NEW_FILE}_pix.pptx" ./*
	cd ..
	rm -rf  "${pptName}_folder"
done