Shell script to remove text from PDF using pdftk

remove_txt

echo $"Script Written by $(tput setaf 5)Bikram Hanzra$(tput sgr 0) (bikz.05@gmail.com)"$

if [ "$#" == 0 ] ; then
 	echo "$(tput setaf 1)We need at least 2 arguments"
	echo "SYNTAX  ./remove <file-name> <text-to-be-removed>"
	echo "<text-to-be-removed> by default = www.it-ebooks.info$(tput sgr 0)"
	exit
fi

if [ "$#" == 1 ] ; then
 	echo "$(tput setaf 1)CAVEAT$(tput sgr 0) -> Will remove occurances of -> $(tput setaf 1)"www.it-ebooks.info"$(tput sgr 0)"
	set -- "${@:1}" "www.it-ebooks.info" 
fi

# Display files names
echo "$(tput setaf 4)File Name ->" "$1"$'\n'"Text to be removed-> " "$2 $(tput sgr 0)"

# Include the watermark
sed -e "s/"$2"/ /g" <"$1" >unwatermarked.pdf && pdftk unwatermarked.pdf output fixed.pdf && mv fixed.pdf unwatermarked.pdf
mv unwatermarked.pdf "$1"
echo "$(tput setaf 4)Removing Watermark Successful :)$(tput sgr 0)"

HOW TO USE THIS SCRIPT

./remove_txt <file-name> <text-to-be-removed>

1. First argument is name of the pdf file
2. Second argument is the text that you want to remove

REMEMBER

1. To make the script executable by using -

chmod +x remove_txt

PACKAGE DEPENDENCIES

1. `sed` 2. `pdftk` To install these packages, use the following command -

sudo apt-get install sed pdftk

REFERENCE

1. [Related SuperUser thread](http://superuser.com/questions/448519/how-to-remove-watermark-from-pdf-using-pdftk)