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diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASHelper.java b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASHelper.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.pdfas;
+
+//Imports
+import java.io.File;
+
+import at.asit.pdfover.signator.SignatureException;
+import at.gv.egiz.pdfas.api.PdfAs;
+import at.gv.egiz.pdfas.api.exceptions.PdfAsException;
+import at.gv.egiz.pdfas.api.internal.PdfAsInternal;
+
+/**
+ * Encapsulates PDF AS API Object to need just one initialization
+ */
+public class PDFASHelper {
+
+	/**
+	 * PDF AS Object
+	 */
+	private static PdfAs pdfAs = null;
+	
+	/**
+	 * Internal Pdf AS Object
+	 */
+	private static PdfAsInternal pdfAsInternal = null;
+	
+	/**
+	 * Creates PDF AS Object
+	 * @return
+	 * @throws PdfAsException
+	 */
+	private static PdfAs createPdfAs() throws PdfAsException {
+		File directory = new File (".");
+		System.setProperty("log4j.configuration", directory.getAbsolutePath() +
+				"/log4j.properties");
+		System.setProperty("pdf-as.work-dir", getWorkDir());
+		return new at.gv.egiz.pdfas.impl.api.PdfAsObject();
+	}
+	
+	/**
+	 * Provides the working directory
+	 * @return the working directory
+	 */
+	public static String getWorkDir() {
+		return System.getProperty("user.home") + "/.pdf-over";
+	}
+	
+	/**
+	 * Creates a PDF-AS Internal object
+	 * @return the PDF-AS Internal object
+	 * @throws PdfAsException
+	 */
+	private static PdfAsInternal createPdfAsInternal() throws PdfAsException {
+		return new at.gv.egiz.pdfas.impl.api.internal.PdfAsInternalObject();
+	}
+	
+	/**
+	 * Gets PDF-AS Object
+	 * @return the PDF-AS Object
+	 * @throws SignatureException
+	 */
+	public static synchronized PdfAs getPdfAs() throws SignatureException {
+		if (pdfAs == null) {
+			try {
+				pdfAs = createPdfAs();
+			} catch(PdfAsException e)  {
+				throw new SignatureException(e);
+			}
+		}
+		return pdfAs;
+	}
+	
+	/**
+	 * Gets PDF-AS Internal object
+	 * @return the PDF-AS Internal object
+	 * @throws SignatureException
+	 */
+	public static synchronized PdfAsInternal getPdfAsInternal() throws SignatureException {
+		if(pdfAsInternal == null) {
+			try {
+				pdfAsInternal = createPdfAsInternal();
+			} catch(PdfAsException e)  {
+				throw new SignatureException(e);
+			}
+		}
+		return pdfAsInternal;
+	}
+}