#!/bin/bash
echo "Stept 1/4 Downloading"
for i in {1..9};
	do 
		wget -nv "http://hydrus.sternwarte.uni-erlangen.de/~wilms/teach/intro1516/page000${i}.svg" 
	done
for i in {10..99};
	do 
		wget -nv "http://hydrus.sternwarte.uni-erlangen.de/~wilms/teach/intro1516/page00${i}.svg"
	done
for i in {100..219};
	do
		wget -nv "http://hydrus.sternwarte.uni-erlangen.de/~wilms/teach/intro1516/page0${i}.svg"
	done

echo "Step 2/4 : Converting.."
for file in $PWD/*.svg;
	do 
		inkscape "$file" -d 1200 -A "${file%.svg}.pdf" 
	done

echo "Step 3/4 : Merging PDFs.."
pdfunite *.pdf AstroFull.pdf
echo "Step 4/4 : Compressing..."
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH  -dQUIET -sOutputFile=output.pdf input.pdf
rm page*.pdf
rm AstroFull.pdf
echo "Done!"