Replace text in a PDF

replace_text_pdf.sh

#!/bin/bash

PDF_FILE=$1
TITLE="${PDF_FILE%.*}"

TEMP1="${TITLE}_q.pdf"
TEMP2="${TITLE}_qr1.pdf"
TEMP3="${TITLE}_qr2.pdf"
TEMP4="${TITLE}_qr3.pdf"

qpdf --qdf --object-streams=disable $PDF_FILE $TEMP1
LC_ALL=C sed -e 's/some text//g' <$TEMP1 >$TEMP2
LC_ALL=C sed -e 's/some more text//g' <$TEMP2 >$TEMP3
LC_ALL=C sed -e 's/even more text//g' <$TEMP3 >$TEMP4

rm -f $PDF_FILE
rm -f $TEMP1
rm -f $TEMP2
rm -f $TEMP3

mv $TEMP4 $PDF_FILE%