From 27f637f39ff051a1c8800ab57b74320cb47c6d18 Mon Sep 17 00:00:00 2001
From: Gardouille <gardouille@gmail.com>
Date: Wed, 2 Nov 2016 10:48:55 +0100
Subject: [PATCH] New script to remove a watermark from a pdf.

---
 remove_pdf_watermark.sh | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100755 remove_pdf_watermark.sh

diff --git a/remove_pdf_watermark.sh b/remove_pdf_watermark.sh
new file mode 100755
index 0000000..48fd379
--- /dev/null
+++ b/remove_pdf_watermark.sh
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+WATER_PDF_FILE="${1}"
+OLD_WATER="${2}"
+
+if [ -z "${3}" ]; then
+	NEW_WATER=""
+else
+	NEW_WATER="${3}"
+fi
+
+
+if [ -f "${WATER_PDF_FILE}" ]; then
+	printf '%s\n' "Replace '${OLD_WATER}' with '${NEW_WATER}' for the PDF file : ${WATER_PDF_FILE}"
+
+	BASE_DIR=$(dirname ${WATER_PDF_FILE})
+	BASE_NAME=$(basename ${WATER_PDF_FILE})
+	UNCOMPRESS_PDF_FILE="${BASE_DIR}/uncompress_${BASE_NAME}"
+	UNWATER_PDF_FILE="${BASE_DIR}/unwater_${BASE_NAME}"
+
+	command pdftk "${WATER_PDF_FILE}" output "${UNCOMPRESS_PDF_FILE}" uncompress
+
+	sed -e "s/${OLD_WATER}/${NEW_WATER}/g" "${UNCOMPRESS_PDF_FILE}" >"${UNWATER_PDF_FILE}"
+	#sed -e "s/UNIVERSITE DE RENNES 1/TEST/g" <"${WATER_PDF_FILE}" >"${UNWATER_PDF_FILE}"
+
+	command pdftk "${UNWATER_PDF_FILE}" output "${WATER_PDF_FILE}" compress
+
+	exit 0
+else
+	printf '%s\n' "Error with the first arg : ${1}"
+	exit 1
+fi
+