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diff --git a/src/main/java/com/lowagie/text/pdf/PdfPageElement.java b/src/main/java/com/lowagie/text/pdf/PdfPageElement.java
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+++ b/src/main/java/com/lowagie/text/pdf/PdfPageElement.java
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+/*
+ * $Id: PdfPageElement.java,v 1.56 2005/05/04 14:33:11 blowagie Exp $
+ * $Name:  $
+ *
+ * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
+ *
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (the "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the License.
+ *
+ * The Original Code is 'iText, a free JAVA-PDF library'.
+ *
+ * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
+ * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
+ *
+ * Contributor(s): all the names of the contributors are added in the source code
+ * where applicable.
+ *
+ * Alternatively, the contents of this file may be used under the terms of the
+ * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
+ * provisions of LGPL are applicable instead of those above.  If you wish to
+ * allow use of your version of this file only under the terms of the LGPL
+ * License and not to allow others to use your version of this file under
+ * the MPL, indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by the LGPL.
+ * If you do not delete the provisions above, a recipient may use your version
+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the MPL as stated above or under the terms of the GNU
+ * Library General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or any later version.
+ *
+ * This library 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 Library general Public License for more
+ * details.
+ *
+ * If you didn't download this code from the following link, you should check if
+ * you aren't using an obsolete version:
+ * http://www.lowagie.com/iText/
+ */
+
+package com.lowagie.text.pdf;
+
+/**
+ * The <CODE>PdfPageElement</CODE> interface has to be implemented by <CODE>PdfPage</CODE> and <CODE>PdfPages</CODE>.
+ *
+ * @see		PdfPage
+ * @see		PdfPages
+ */
+
+interface PdfPageElement {
+    
+/**
+ * Set the value for the <B>Parent</B> key in the Page or Pages Dictionary.
+ *
+ * @param	reference			an indirect reference to a <CODE>PdfPages</CODE>-object
+ */
+    
+    public void setParent(PdfIndirectReference reference);
+    
+/**
+ * Checks if this page element is a tree of pages.
+ *
+ * @return	<CODE>true</CODE> if it's a tree of pages;
+ *			<CODE>false</CODE> if it's a single page
+ */
+    
+    public boolean isParent();
+}
+\ No newline at end of file