script to PDF to JPG using pdftk and imagemagick

pdf2jpg.sh

#!/bin/bash

# Script to convert PDF file to JPG images
#
# Dependencies:
# * pdftk
# * imagemagick

PDF=$1

echo "Processing $PDF"
DIR=`basename "$1" .pdf`

mkdir "$DIR"

echo '  Splitting PDF file to pages...'
pdftk "$PDF" burst output "$DIR"/%04d.pdf
pdftk "$PDF" dump_data output "$DIR"/metadata.txt

echo '  Converting pages to JPEG files...'
for i in "$DIR"/*.pdf; do
  convert -colorspace RGB -interlace none -density 300x300 -quality 100 "$i" "$DIR"/`basename "$i" .pdf`.jpg
done

echo 'All done'

Hin: you need to have ghostscript installed for this as imagemagick relies on it. If it's missing you might see an error like

convert: FailedToExecuteCommand `'gs' -sstdout=%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 '-sDEVICE=pngalpha' -dTextAlphaBits=4 -dGraphicsAlphaBits=4 '-r300x300'  '-sOutputFile=/var/folders/w_/bn46lxks695dg9yvvrgx_xnm0000gn/T/magick-23598b4Fr54IpZ4vE%d' '-f/var/folders/w_/bn46lxks695dg9yvvrgx_xnm0000gn/T/magick-23598hwvO5gF963Ot' '-f/var/folders/w_/bn46lxks695dg9yvvrgx_xnm0000gn/T/magick-23598JknpjTH6yPWj'' (1) @ error/pdf.c/InvokePDFDelegate/291.
convert: no images defined `0002.jpg' @ error/convert.c/ConvertImageCommand/3275. ```

Thanks a lot for the script!

Thanks for clearing that up!

Very Nice. Thanks

Simpler solution is to just use pdftoppm:

pdftoppm -jpeg {pdf file} {output folder}

Install with sudo apt install poppler-utils.