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diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/api/commons/SignatureInformation.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/api/commons/SignatureInformation.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.
+ *
+ * $Id: SignatureHolder.java,v 1.3 2006/10/11 07:57:58 wprinz Exp $
+ */
+package at.gv.egiz.pdfas.api.commons;
+
+import java.security.cert.X509Certificate;
+import java.util.Date;
+import java.util.List;
+
+import at.gv.egiz.pdfas.api.analyze.NonTextObjectInfo;
+import at.gv.egiz.pdfas.api.io.DataSource;
+
+/**
+ * Holds the information of one found signature block, which is the signed data
+ * and the corresponding signature information.
+ * 
+ * @author wprinz
+ */
+public interface SignatureInformation
+{
+  /**
+   * Returns the type of this signature (binary/textual).
+   * 
+   * <p>
+   * May be {@link Constants#SIGNATURE_TYPE_BINARY} or
+   * {@link Constants#SIGNATURE_TYPE_TEXTUAL}.
+   * </p>
+   * 
+   * @return Returns the type of this signature (binary/textual).
+   */
+  public String getSignatureType();
+
+  /**
+   * Returns the DataSource providing the data that was signed.
+   * 
+   * <p>
+   * Note that this is the signed data as sent to the verification device by
+   * PDF-AS. The verification device (e.g. MOA) may perform several other
+   * transformations on the data before feeding it to the signature hash
+   * function. To get the actual hashed data use the ReturnHashInputData mechanism (which is very slow).
+   * </p>
+   * 
+   * @return Returns the DataSource providing the data that was signed.
+   * 
+   * @see at.gv.egiz.pdfas.api.verify.VerifyParameters#setReturnHashInputData(boolean)
+   * @see at.gv.egiz.pdfas.api.verify.VerifyResult#getHashInputData()
+   * 
+   */
+  public DataSource getSignedData();
+
+  /**
+   * Returns the certificate of the signer.
+   * 
+   * <p>
+   * Information like subject name, issuer name or serial number can be
+   * retrieved form this certificate.
+   * </p>
+   * 
+   * @return Returns the certificate of the signer.
+   */
+  public X509Certificate getSignerCertificate();
+
+  /**
+   * Returns the signing time, which is the time when the signature was created.
+   * 
+   * @return Returns the signing time, which is the time when the signature was
+   *         created.
+   */
+  public Date getSigningTime();
+
+  /**
+   * Returns additional, internal information about the found signature.
+   * 
+   * <p>
+   * Note that this provides a way for developers to gather core information
+   * about the signature. What information is returned strongly depends on the
+   * core implementation.
+   * </p>
+   * 
+   * @return Returns additional, internal information about the signature. Null
+   *         means that no additional information is available.
+   */
+  public Object getInternalSignatureInformation();
+  
+  /**
+   * Returns the embedded /TimeStamp value (b64 encoded) from the signature if available.
+   * @return 
+   */
+  public String getTimeStampValue();
+  
+  /**
+   * Returns a list<{@link NonTextObjectInfo}> of non textual objects in the pdf document.
+   * Only available for textual signatures. Show this to the user who signed the textual content only! 
+   * @return  List<{@link NonTextObjectInfo} or <tt>null</tt> of not available (binary signature)
+   */
+  public List getNonTextualObjects();
+  
+  public void setNonTextualObjects(List nonTextualObjects);
+
+  /**
+   * Returns <code>true</code> if non textual objects have been found, <code>false</code> if not.
+   * @return <code>true</code> if non textual objects have been found, <code>false</code> if not.
+   */
+  public boolean hasNonTextualObjects();
+
+
+}
+\ No newline at end of file