#!/bin/bash

# Checks if SUDO

if [ "$(id -u)" != "0" ]; then

echo "Sorry, you are not root."

echo "Terminating script"

exit 1

fi

# Assigns variables

TS=$(date +"%s")

BASE=`pwd -P`

# Checks if requisite directories exist in /root

# if not creates them

if [ ! -d "output" ]; then

echo -e "Directory $BASE/output/ does not exist"

echo -e "Creating it now"

mkdir output

fi

echo "\n"

# Creates an ACL file for each folder in /

for F in *.pdf; do

if [ -f "${F}" ]; then

F2=${F#"/"}

echo "Creating: $BASE/output/$TS-$F2.pdf"

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=$BASE/output/$TS-$F2 $F2

fi

done

echo "\n"

echo "PDF Optimisation Complete"