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diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/api/io/TextBased.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/api/io/TextBased.java
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+/**
+ * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
+ * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
+ * joint initiative of the Federal Chancellery Austria and Graz University of
+ * Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ */
+package at.gv.egiz.pdfas.api.io;
+
+/**
+ * Tells, that the IO Element (DataSink - but mostly DataSource) is based upon
+ * character data.
+ * 
+ * <p>
+ * This can be used to retrieve the character text directly with the correct
+ * encoding etc.
+ * </p>
+ * <p>
+ * This makes most sense for text DataSources.
+ * </p>
+ * 
+ * @author wprinz
+ */
+public interface TextBased
+{
+
+  /**
+   * Returns the text.
+   * 
+   * @return Returns the text.
+   */
+  public String getText();
+
+}