diff --git a/Scripts/Functions/Render/render_mogrifyCommentToPng.sh b/Scripts/Functions/Render/render_mogrifyCommentToPng.sh
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+++ b/Scripts/Functions/Render/render_mogrifyCommentToPng.sh
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+#!/bin/bash
+#
+# render_mogrifyCommentToPng.sh -- This function provides
+# post-rendition to write a commentary in PNG images produced as
+# result of centos-art.sh base-rendition action. The commentary is
+# written in the image datastream and can be seen using the command
+# `identify -verbose file.png'.
+#
+# Copyright (C) 2009-2011 Alain Reguera Delgado
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+# USA.
+# 
+# ----------------------------------------------------------------------
+# $Id$
+# ----------------------------------------------------------------------
+
+function render_mogrifyCommentToPng {
+
+    # Get commentary.
+    local COMMENT=$(render_getConfigOption "$ACTION" '2-')
+
+    # Check base file existence.
+    cli_checkFiles ${FILE}.png 'f'
+
+    # Check commentary and write commentary.
+    if [[ "$COMMENT" != "" ]];then
+        mogrify -comment "$COMMENT" ${FILE}.png
+    fi
+
+}