pdfdir-copy

#!/bin/bash
#
# pdfdir-copy     http://github.com/bronson/pdfdir
# Scott Bronson
# 16 May 2009
#
#    usage: pdfdir-copy src-dir destination-dir
#
# Uses ghostscript to re-encode an entire directory hierarchy of PDF files.
# This is the best way to remove encryption and recompress but it does take
# considerable CPU time.
#
# TODO: We don't bomb out on empty files.  We probably should.
# TODO: We show ugly ghostscript output and no progress info.  Ugh.

srcdir="$1"
dstdir="$2"

if [ -z "$srcdir" ] || [ -z "$dstdir" ]; then
	echo "usage: $(basename "$0") src-dir destination-dir"
	exit
fi

mkdir -p "$dstdir" || exit

find $srcdir -name "*.pdf" | while read i; do
	echo "$i"
	echo "$i" >> /tmp/errout
	mkdir -p "$dstdir/$(dirname "$i")"
	gs -sDEVICE=pdfwrite -sOUTPUTFILE="$dstdir/$i" -dBATCH -dNOPAUSE "$i" 2>>/tmp/errout || echo "$i" >> /tmp/badfiles
done