download swf pages of a book and convert to png files

book_swf_to_png.sh

#!/bin/bash

# Add the number of pages
pages=$((134))

rm -rf *.swf*

mkdir SWF
mkdir PNG

i=$((1))
for j in `seq -w 1 $pages`
do
	echo "process page $i"
	if [ ! -f "SWF/p$i.swf" ]; then
	  # change the url to page url
	  page="http://url_of_your_page/p$i.swf"
		echo "download $page"
		wget $page
		mv *.swf SWF/
	fi
	if [ ! -f "PNG/p$i.png" ]; then
    	swfrender -X 1836 -Y 2376 "SWF/p$i.swf" -o "PNG/p$i.png"
    fi

	mv "PNG/p$i.png" "PNG/p$j.png"
	echo "p$i.png -> PNG/p$j.png"
	i=`expr $j + 1`
done