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diff --git a/pdf-over-signer/src/main/java/at/asit/pdfover/signer/ByteArrayDocumentSource.java b/pdf-over-signer/src/main/java/at/asit/pdfover/signer/ByteArrayDocumentSource.java
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+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * 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://joinup.ec.europa.eu/software/page/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.
+ */
+package at.asit.pdfover.signer;
+
+//Imports
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+
+/**
+ * A DocumentSource using a byte[] to store the document content
+ */
+public class ByteArrayDocumentSource implements DocumentSource {
+
+	/**
+	 * Document content
+	 */
+	protected byte[] data;
+
+	/**
+	 * Constructor with byte[] content
+	 * @param data the document content
+	 */
+	public ByteArrayDocumentSource(byte[] data) {
+		this.data = data;
+	}
+
+	@Override
+	public InputStream getInputStream() {
+		return new ByteArrayInputStream(this.data);
+	}
+
+	@Override
+	public int getLength() {
+		return this.data.length;
+	}
+
+	@Override
+	public byte[] getByteArray() {
+		return this.data;
+	}
+
+}