pdf2img

pdf2img.sh

#!/usr/bin/env bash

if [ $# != 1 ]; then
  echo "Usage: $0 [filename]"
  exit 1
fi

lastdir=`pwd`
tmpdir=`mktemp -d --suffix=-pdf2img`
echo "temp dir: $tmpdir"
convert -density 144 $1 "$tmpdir/%d.png"

total_files=`ls -1 $tmpdir | wc -l`
cd $tmpdir
inputfiles=""
for i in `seq 0 $[total_files-1]`; do
  inputfiles+="$i.png "
done

convert $inputfiles out.pdf
mv out.pdf $lastdir/pdfimg-$1
echo "output: $lastdir/pdfimg-$1"