Add PDF-AS4 signer

11 files changed, 1253 insertions, 0 deletions

diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/ByteArrayPDFASDataSource.java b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/ByteArrayPDFASDataSource.java
new file mode 100644
index 00000000..b2f95f50
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/ByteArrayPDFASDataSource.java
@@ -0,0 +1,67 @@
+/*
+ * 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.ByteArrayInputStream;
+import java.io.InputStream;
+
+import at.gv.egiz.pdfas.api.io.DataSource;
+
+/**
+ * PDF - AS Specific Data Source with byte array representation
+ */
+public class ByteArrayPDFASDataSource implements DataSource {
+
+	/**
+	 * Internal data byte array
+	 */
+	private byte[] data;
+
+	/**
+	 * Default constructor
+	 * @param data The byte[] to be used
+	 */
+	public ByteArrayPDFASDataSource(byte[] data) {
+		this.data = data;
+	}
+
+	@Override
+	public InputStream createInputStream() {
+		return new ByteArrayInputStream(this.data);
+	}
+
+	@Override
+	public int getLength() {
+		return this.data.length;
+	}
+
+	@Override
+	public byte[] getAsByteArray() {
+		return this.data;
+	}
+
+	@Override
+	public String getMimeType() {
+		return "application/pdf";
+	}
+
+	@Override
+	public String getCharacterEncoding() {
+		return "UTF8";
+	}
+
+}
\ No newline at end of file
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
new file mode 100644
index 00000000..473bbf42
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASHelper.java
@@ -0,0 +1,102 @@
+/*
+ * 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;
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSLRequest.java b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSLRequest.java
new file mode 100644
index 00000000..f274068a
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSLRequest.java
@@ -0,0 +1,54 @@
+/*
+ * 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 org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.signator.ByteArrayDocumentSource;
+import at.asit.pdfover.signator.SLRequest;
+import at.asit.pdfover.signer.pdfas.exceptions.PDFASSLRequestException;
+
+/**
+ * PDF - AS Security Layer Request implementation
+ */
+public class PDFASSLRequest extends SLRequest {
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	private static final Logger log = LoggerFactory.getLogger(PDFASSLRequest.class);
+
+	/**
+	 * Default constructor
+	 * @param slRequest
+	 * @param signData 
+	 * @throws PDFASSLRequestException 
+	 */
+	public PDFASSLRequest(String slRequest, byte[] signData) throws PDFASSLRequestException {
+		if(!slRequest.contains(PDFASSigner.LOC_REF)) {
+			log.error("PDF-AS SL request doesn't contain " + PDFASSigner.LOC_REF);
+			log.debug("Request: " + slRequest);
+			throw new PDFASSLRequestException("PDF-AS SL request doesn't contain " + PDFASSigner.LOC_REF);
+		}
+
+		// Modifing SL Request ...
+		setRequest(slRequest.replace(PDFASSigner.LOC_REF, SLRequest.DATAOBJECT_STRING));
+
+		setSignatureData(new ByteArrayDocumentSource(signData));
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSigner.java b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSigner.java
new file mode 100644
index 00000000..6fa1c094
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSigner.java
@@ -0,0 +1,190 @@
+package at.asit.pdfover.signer.pdfas;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.signator.BKUs;
+import at.asit.pdfover.signator.ByteArrayDocumentSource;
+import at.asit.pdfover.signator.SLResponse;
+import at.asit.pdfover.signator.SignResult;
+import at.asit.pdfover.signator.SignResultImpl;
+import at.asit.pdfover.signator.SignatureException;
+import at.asit.pdfover.signator.SignatureParameter;
+import at.asit.pdfover.signator.SignaturePosition;
+import at.asit.pdfover.signator.Signer;
+import at.asit.pdfover.signator.SigningState;
+import at.asit.pdfover.signer.pdfas.exceptions.PDFASSLRequestException;
+import at.gv.egiz.pdfas.api.PdfAs;
+import at.gv.egiz.pdfas.api.commons.Constants;
+import at.gv.egiz.pdfas.api.exceptions.PdfAsException;
+import at.gv.egiz.pdfas.api.internal.LocalBKUParams;
+import at.gv.egiz.pdfas.api.internal.PdfAsInternal;
+import at.gv.egiz.pdfas.api.sign.SignParameters;
+import at.gv.egiz.pdfas.api.sign.SignatureDetailInformation;
+import at.gv.egiz.pdfas.io.ByteArrayDataSink;
+
+/**
+ * PDF AS Signer Implementation
+ */
+public class PDFASSigner implements Signer {
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	static final Logger log = LoggerFactory.getLogger(PDFASSigner.class);
+
+	/**
+	 * The template URL
+	 */
+	protected static final String URL_TEMPLATE = "http://pdfover.4.gv.at/template";
+
+	/**
+	 * Location reference string
+	 */
+	protected static final String LOC_REF = "<sl:LocRefContent>" + URL_TEMPLATE
+			+ "</sl:LocRefContent>";
+
+	@Override
+	public SigningState prepare(SignatureParameter parameter)
+			throws SignatureException {
+		try {
+			PdfAsSignatureParameter sign_para = null;
+
+			if (PdfAsSignatureParameter.class.isInstance(parameter)) {
+				sign_para = PdfAsSignatureParameter.class.cast(parameter);
+			}
+
+			if (sign_para == null) {
+				throw new SignatureException("Incorrect SignatureParameter!");
+			}
+
+			PdfAs pdfas = PDFASHelper.getPdfAs();
+
+			PDFASSigningState state = new PDFASSigningState();
+
+			SignParameters params = new SignParameters();
+			params.setSignaturePositioning(sign_para.getPDFASPositioning());
+
+			if (parameter.getSignatureDevice() == BKUs.LOCAL) {
+				params.setSignatureDevice(Constants.SIGNATURE_DEVICE_BKU);
+			} else if (parameter.getSignatureDevice() == BKUs.MOBILE) {
+				params.setSignatureDevice(Constants.SIGNATURE_DEVICE_MOBILE);
+				// params.setSignatureDevice(Constants.SIGNATURE_DEVICE_MOBILETEST);
+			}
+			params.setSignatureType(Constants.SIGNATURE_TYPE_BINARY);
+
+			params.setSignatureProfileId(sign_para.getSignatureProfileID());
+
+			params.setOutput(new ByteArrayDataSink());
+			if (parameter.getEmblem() != null) {
+				params.setProfileOverrideValue("SIG_LABEL", parameter
+						.getEmblem().getFileName());
+			}
+			
+			if(parameter.getProperty("SIG_NOTE") != null) {
+				params.setProfileOverrideValue("SIG_NOTE", parameter.getProperty("SIG_NOTE"));
+			}
+
+			// Prepare Output sink
+			state.setOutput(new ByteArrayDataSink());
+			params.setOutput(state.getOutput());
+
+			params.setDocument(sign_para.getPDFASDataSource());
+
+			state.setSignParameters(params);
+
+			PdfAsInternal pdfasInternal = PDFASHelper.getPdfAsInternal();
+
+			// Prepares the document
+			SignatureDetailInformation sdi = pdfas.prepareSign(params);
+
+			state.setSignatureDetailInformation(sdi);
+
+			// Retrieve the SL Request
+			String slRequest = pdfasInternal.prepareLocalSignRequest(params,
+					false, URL_TEMPLATE, sdi);
+
+			at.gv.egiz.pdfas.api.io.DataSource sig_data = sdi
+					.getSignatureData();
+
+			PDFASSLRequest request = new PDFASSLRequest(slRequest,
+					sig_data.getAsByteArray());
+
+			state.setSignatureRequest(request);
+
+			return state;
+		} catch (PDFASSLRequestException e) {
+			throw new SignatureException(e);
+		} catch (PdfAsException e) {
+			throw new SignatureException(e);
+		} catch (Throwable t) {
+			throw new SignatureException(t);
+		}
+	}
+
+	@Override
+	public SignResult sign(SigningState state) throws SignatureException {
+		try {
+			PDFASSigningState sstate = null;
+
+			if (PDFASSigningState.class.isInstance(state)) {
+				sstate = PDFASSigningState.class.cast(state);
+			}
+
+			if (sstate == null) {
+				throw new SignatureException("Incorrect SigningState!");
+			}
+
+			// Retrieve objects
+			PdfAs pdfas = PDFASHelper.getPdfAs();
+
+			PdfAsInternal pdfasInternal = PDFASHelper.getPdfAsInternal();
+
+			SignParameters params = sstate.getSignParameters();
+
+			SignatureDetailInformation sdi = sstate
+					.getSignatureDetailInformation();
+
+			SLResponse slResponse = sstate.getSignatureResponse();
+
+			LocalBKUParams bkuParams = new LocalBKUParams(
+					slResponse.getServer(), slResponse.getUserAgent(),
+					slResponse.getSignaturLayout());
+
+			// Perform signature
+			at.gv.egiz.pdfas.api.sign.SignResult signResult = pdfasInternal
+					.finishLocalSign(pdfas, params, sdi, bkuParams, false,
+							slResponse.getSLRespone());
+
+			// Preparing Result Response
+			SignResultImpl result = new SignResultImpl();
+
+			// Set Signer Certificate
+			result.setSignerCertificate(signResult.getSignerCertificate());
+			at.gv.egiz.pdfas.api.sign.pos.SignaturePosition pdfasPos = signResult
+					.getSignaturePosition();
+
+			// Set Signature position
+			SignaturePosition pos = new SignaturePosition(pdfasPos.getX(),
+					pdfasPos.getY(), pdfasPos.getPage());
+			/*
+			 * pos.SetAuto(sstate.getPDFAsSignatureParameter()
+			 * .getSignaturePosition().useAutoPositioning());
+			 */
+			result.setSignaturePosition(pos);
+
+			// Set signed Document
+			result.setSignedDocument(new ByteArrayDocumentSource(
+					((ByteArrayDataSink) sstate.getOutput()).getData()));
+
+			return result;
+		} catch (PdfAsException e) {
+			throw new SignatureException(e);
+		}
+	}
+
+	@Override
+	public SignatureParameter newParameter() {
+		return new PdfAsSignatureParameter();
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSignerFactory.java b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSignerFactory.java
new file mode 100644
index 00000000..68a29341
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSignerFactory.java
@@ -0,0 +1,31 @@
+/*
+ * 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 at.asit.pdfover.signator.Signer;
+import at.asit.pdfover.signator.SignerFactory;
+
+/**
+ * Factory class for PDF-AS Signer
+ */
+public class PDFASSignerFactory extends SignerFactory {
+
+	@Override
+	public Signer createSigner() {
+		return new PDFASSigner();
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSigningState.java b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSigningState.java
new file mode 100644
index 00000000..247b1afc
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PDFASSigningState.java
@@ -0,0 +1,173 @@
+/*
+ * 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 at.asit.pdfover.signator.BkuSlConnector;
+import at.asit.pdfover.signator.SLRequest;
+import at.asit.pdfover.signator.SLResponse;
+import at.asit.pdfover.signator.SigningState;
+import at.gv.egiz.pdfas.api.io.DataSink;
+import at.gv.egiz.pdfas.api.sign.SignatureDetailInformation;
+
+/**
+ * Signing State for PDFAS Wrapper
+ */
+public class PDFASSigningState implements SigningState {
+
+	/**
+	 * The Signature Layer request
+	 */
+	protected SLRequest slrequest;
+	
+	/**
+	 * The PDF AS DataSink
+	 */
+	protected DataSink output;
+	
+	/**
+	 * Gets the DataSink
+	 * @return the datasink
+	 */
+	public DataSink getOutput() {
+		return this.output;
+	}
+
+	/**
+	 * Sets the datasing
+	 * @param output the pdf as datasink
+	 */
+	public void setOutput(DataSink output) {
+		this.output = output;
+	}
+
+	/**
+	 * The Signature Layer response
+	 */
+	protected SLResponse slresponse;
+	
+	@Override
+	public SLRequest getSignatureRequest() {
+		return this.slrequest;
+	}
+
+	@Override
+	public void setSignatureResponse(SLResponse response) {
+		this.slresponse = response;
+	}
+
+	/**
+	 * Sets the SL Request
+	 * @param request The SL Request
+	 */
+	public void setSignatureRequest(SLRequest request) {
+		this.slrequest = request;
+	}
+	
+	/**
+	 * Gets the SL Response
+	 * @return The SL Repsonse object
+	 */
+	public SLResponse getSignatureResponse() {
+		return this.slresponse;
+	}
+	
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SigningState#hasSignatureResponse()
+	 */
+	@Override
+	public boolean hasSignatureResponse() {
+		return this.getSignatureResponse() != null;
+	}
+	
+	// ----------------------------------------
+	// PDF AS Specific stuff
+	// ----------------------------------------
+	
+	/**
+	 * signature detail information
+	 */
+	protected SignatureDetailInformation signatureDetailInformation;
+
+	/**
+	 * PDF - AS sign parameters
+	 */
+	protected at.gv.egiz.pdfas.api.sign.SignParameters signParameters;
+	
+	/**
+	 * Signature parameters 
+	 */
+	protected PdfAsSignatureParameter pdfAsSignatureParameter;
+	
+	/**
+	 * Gets PDF - AS Signature Parameters
+	 * @return PdfAsSignatureParameter
+	 */
+	public PdfAsSignatureParameter getPdfAsSignatureParameter() {
+		return this.pdfAsSignatureParameter;
+	}
+
+	/**
+	 * Sets PDF - AS Signature Parameters
+	 * @param pdfAsSignatureParameter
+	 */
+	public void setPdfAsSignatureParameter(
+			PdfAsSignatureParameter pdfAsSignatureParameter) {
+		this.pdfAsSignatureParameter = pdfAsSignatureParameter;
+	}
+
+	/**
+	 * Get Sign Parameters
+	 * @return SignParameters
+	 */
+	public at.gv.egiz.pdfas.api.sign.SignParameters getSignParameters() {
+		return this.signParameters;
+	}
+
+	/**
+	 * Sets sign Parameter
+	 * @param signParameters
+	 */
+	public void setSignParameters(
+			at.gv.egiz.pdfas.api.sign.SignParameters signParameters) {
+		this.signParameters = signParameters;
+	}
+
+	/**
+	 * Gets the signature detail information
+	 * @return SignatureDetailInformation
+	 */
+	public SignatureDetailInformation getSignatureDetailInformation() {
+		return this.signatureDetailInformation;
+	}
+
+	/**
+	 * Sets the SignatureDetailInformation
+	 * @param signatureDetailInformation
+	 */
+	public void setSignatureDetailInformation(
+			SignatureDetailInformation signatureDetailInformation) {
+		this.signatureDetailInformation = signatureDetailInformation;
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SigningState#setBKUConnector(at.asit.pdfover.signator.BkuSlConnector)
+	 */
+	@Override
+	public void setBKUConnector(BkuSlConnector connector) {
+		// Nothing to do here
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PdfAsSignatureParameter.java b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PdfAsSignatureParameter.java
new file mode 100644
index 00000000..1ceb6493
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/PdfAsSignatureParameter.java
@@ -0,0 +1,602 @@
+/*
+ * 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.awt.Image;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Locale;
+
+import javax.imageio.ImageIO;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.signator.SignatureDimension;
+import at.asit.pdfover.signator.SignatureParameter;
+import at.asit.pdfover.signator.SignaturePosition;
+import at.gv.egiz.pdfas.api.io.DataSource;
+import at.gv.egiz.pdfas.api.sign.pos.SignaturePositioning;
+import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
+
+/**
+ * Implementation of SignatureParameter specific for PDF - AS Library
+ */
+public class PdfAsSignatureParameter extends SignatureParameter {
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	static final Logger log = LoggerFactory
+			.getLogger(PdfAsSignatureParameter.class);
+
+	/** The profile ID for the german signature block */
+	private static final String PROFILE_ID_DE = "SIGNATURBLOCK_SMALL_DE";
+	/** The profile ID for the german signature block if a signature note is set */
+	private static final String PROFILE_ID_DE_NOTE = "SIGNATURBLOCK_SMALL_DE_NOTE";
+	/** The profile ID for the english signature block */
+	private static final String PROFILE_ID_EN = "SIGNATURBLOCK_SMALL_EN";
+	/** The profile ID for the english signature block if a signature note is set */
+	private static final String PROFILE_ID_EN_NOTE = "SIGNATURBLOCK_SMALL_EN_NOTE";
+
+	private HashMap<String, String> genericProperties = new HashMap<String, String>();
+
+//	private static final int PLACEHOLDER_SCALE = 4;
+//
+//	private int height = -1;
+//
+//	private float perUnitHeight = 0;
+
+	/**
+	 * Gets the PDFAS Positioning
+	 * 
+	 * @return SignaturePositioning
+	 * @throws PDFDocumentException
+	 */
+	public SignaturePositioning getPDFASPositioning()
+			throws PDFDocumentException {
+		SignaturePosition position = this.getSignaturePosition();
+
+		SignaturePositioning positioning = null;
+		if (!position.useAutoPositioning()) {
+			if (position.getPage() < 1) {
+				positioning = new SignaturePositioning(String.format(
+						(Locale) null,
+						"p:new;x:%f;y:%f;w:276",  position.getX(),
+						position.getY()));
+			} else {
+				positioning = new SignaturePositioning(String.format(
+						(Locale) null,
+						"p:%d;x:%f;y:%f;w:276", position.getPage(), position.getX(),
+						position.getY()));
+			}
+		} else {
+			positioning = new SignaturePositioning("p:auto;x:auto;y:auto;w:276");
+		}
+
+		return positioning;
+	}
+
+	/**
+	 * Gets PDF - AS specific data source
+	 * 
+	 * @return ByteArrayPDFASDataSource
+	 */
+	public DataSource getPDFASDataSource() {
+		return new ByteArrayPDFASDataSource(this.getInputDocument()
+				.getByteArray());
+	}
+
+	@Override
+	public void setProperty(String key, String value) {
+		this.genericProperties.put(key, value);
+//		this.height = -1;
+	}
+
+	@Override
+	public String getProperty(String key) {
+		return this.genericProperties.get(key);
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SignatureParameter#setSignatureLanguage(java.lang.String)
+	 */
+	@Override
+	public void setSignatureLanguage(String signatureLanguage) {
+		super.setSignatureLanguage(signatureLanguage);
+//		this.height = -1;
+	}
+
+	@Override
+	public SignatureDimension getPlaceholderDimension() {
+		// return new SignatureDimension(487, 206);
+		return new SignatureDimension(276, 126);
+		//return new SignatureDimension(getWidth(), getHeight());
+	}
+
+//	private static int getWidth() {
+//		return 276;
+//	}
+//
+//	private int getHeight() {
+//		if (this.height < 0)
+//		{
+//			BufferedImage timage = new BufferedImage(1, 1,
+//					BufferedImage.TYPE_INT_RGB);
+//			try {
+//				this.height = (int) (getTableHeight(getSignatureTable(), null, getWidth() * PLACEHOLDER_SCALE, timage.getGraphics()) / PLACEHOLDER_SCALE);
+//			} catch (SignatureException e) {
+//				log.error("getTableHeight failed ...", e);
+//			} catch (SignatureTypesException e) {
+//				log.error("getTableHeight failed ...", e);
+//			}
+//			timage.flush();
+//		}
+//		if (this.height < 0)
+//			return 95;
+//
+//		return this.height;
+//	}
+
+	/**
+	 * Get the Signature Profile ID for this set of parameters
+	 * @return the Signature Profile ID
+	 */
+	public String getSignatureProfileID() {
+		String lang = getSignatureLanguage();
+		boolean useNote = (getProperty("SIG_NOTE") != null);
+
+		if (lang != null && lang.equals("en"))
+			return useNote ? PROFILE_ID_EN_NOTE : PROFILE_ID_EN;
+
+		return useNote ? PROFILE_ID_DE_NOTE : PROFILE_ID_DE;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see at.asit.pdfover.signator.SignatureParameter#getPlaceholder()
+	 */
+	@Override
+	public Image getPlaceholder() {
+
+		try {
+			Image logo = null; 
+			try {
+			if (this.getEmblem() != null
+					&& this.getEmblem().getFileName() != null
+					&& new File(this.getEmblem().getFileName())
+							.exists()) {
+				logo = ImageIO.read(new File(this.getEmblem()
+						.getFileName()));
+				
+			} 
+			}
+			catch(Exception e) {
+				log.error("Failed to get emblem ...", e);
+			}
+			
+			Image img = null;
+			String lang = getSignatureLanguage();
+			if (lang != null && lang.equals("en")) {
+				img = ImageIO.read(PdfAsSignatureParameter.class
+						.getResourceAsStream("/img/sign_prev_en.png"));
+				
+				if(logo != null) {
+					logo = logo.getScaledInstance(141, 140,
+							Image.SCALE_SMOOTH);
+					img.getGraphics().drawImage(logo, 6, 115, null);
+				}
+				
+			} else {
+				img = ImageIO.read(PdfAsSignatureParameter.class
+						.getResourceAsStream("/img/sign_prev_de.png"));
+				
+				if(logo != null) {
+					logo = logo.getScaledInstance(141, 140,
+							Image.SCALE_SMOOTH);
+					img.getGraphics().drawImage(logo, 6, 115, null);
+				}
+			}
+			return img;
+		} catch (IOException e) {
+			return new BufferedImage(getPlaceholderDimension().getWidth(),
+					getPlaceholderDimension().getHeight(),
+					BufferedImage.TYPE_INT_RGB);
+		}
+		
+//		Try to render signature block - disabled for now (just use images)
+//
+//		try {
+//			PDFASHelper.getPdfAs();
+//
+//			
+//			float width = getPlaceholderDimension().getWidth() * PLACEHOLDER_SCALE;
+//			float height = getPlaceholderDimension().getHeight() * PLACEHOLDER_SCALE;
+//
+//			Table table = this.getSignatureTable();
+//
+//			//log.info(table.toString());
+//
+//			BufferedImage timage = new BufferedImage(1, 1,
+//					BufferedImage.TYPE_INT_RGB);
+//			float[] heights = this.getTableHeights(table, table.getStyle(),
+//					height, (int)width, timage.getGraphics());
+//			timage.flush();
+//			float mheight = 0;
+//			
+//			for(int i = 0; i < heights.length; i++) {
+//				mheight += heights[i];
+//			}
+//		
+//			this.height = (int) (mheight / PLACEHOLDER_SCALE);
+//			
+//			log.info("Width: " + width + " Height: " + height + " HShould: " + mheight);
+//			BufferedImage image = new BufferedImage((int) width, (int) mheight,
+//					BufferedImage.TYPE_INT_RGB);
+//			Graphics g = image.getGraphics();
+//
+//			g.setColor(table.getStyle().getBgColor());
+//			g.fillRect(0, 0, (int) width, (int) mheight);
+//
+//			g.setColor(Color.black);
+//			g.drawRect(0, 0, (int) width, (int) mheight);
+//
+//			this.drawTable(0, 0, (int) width, (int) mheight, table,
+//					table.getStyle(), g, heights);
+//
+//			g.dispose();
+//
+//			//save(image, "png");
+//
+//			return image;
+//		} catch (Exception ex) {
+//			try {
+//				return ImageIO.read(PdfAsSignatureParameter.class
+//						.getResourceAsStream("/img/fallbackPlaceholder.png"));
+//			} catch (IOException e) {
+//				return new BufferedImage(getPlaceholderDimension().getWidth(),
+//						getPlaceholderDimension().getHeight(),
+//						BufferedImage.TYPE_INT_RGB);
+//			}
+//		}
+	}
+
+//	private Table getSignatureTable() throws SignatureException, SignatureTypesException {
+//		SignatureObject sign_obj = at.knowcenter.wag.egov.egiz.PdfAS
+//				.createSignatureObjectFromType(getSignatureProfileID());
+//
+//		sign_obj.fillValues(' ', true, false);
+//		sign_obj.setKZ(BinarySignator_1_1_0.MY_ID);
+//		return sign_obj.getAbstractTable();
+//	}
+//	
+//	/**
+//	 * used for debugging ..
+//	 * 
+//	 * @param image
+//	 * @param ext
+//	 */
+//	@SuppressWarnings("unused")
+//	@Deprecated
+//	private static void save(BufferedImage image, String ext) {
+//		String fileName = "savingAnImage";
+//		File file = new File(fileName + "." + ext);
+//		try {
+//			ImageIO.write(image, ext, file); // ignore returned boolean
+//			log.debug("Saved as: " + file.getAbsolutePath());
+//		} catch (IOException e) {
+//			System.out.println("Write error for " + file.getPath() + ": "
+//					+ e.getMessage());
+//		}
+//	}
+//
+//	@SuppressWarnings("rawtypes")
+//	private int drawTable(int xoff, int yoff, int width, int height,
+//			Table table, Style parentstyle, Graphics g, float[] heights) {
+//		Style style = parentstyle;
+//		if (table.getStyle() != null) {
+//			style = table.getStyle();
+//		}
+//
+//		log.debug(String.format((Locale) null, "Table@ %dx%d", xoff, yoff));
+//
+//		Font oldFont = g.getFont();
+//		Font font = PdfAsSignatureParameter.getFont(style);
+//		g.setFont(font);
+//		// draw background
+//		// graphic.setColor(style.getBgColor());
+//		// graphic.fillRect(xoff, yoff, width, height);
+//
+//		g.setColor(Color.black);
+//
+//		// draw border
+//		if (style.getBorder() > 0) {
+//			g.setColor(Color.black);
+//			g.drawRect(xoff, yoff, width, height);
+//		}
+//		float[] colWidths = table.getColsRelativeWith();
+//		float sum = 0;
+//
+//		for (int i = 0; i < colWidths.length; i++) {
+//			sum += colWidths[i];
+//		}
+//
+//		float perUnit = width / sum;
+//
+//		int padding = (int) (style.getPadding() * this.perUnitHeight * PLACEHOLDER_SCALE);
+//
+//		ArrayList rows = table.getRows();
+//		float roffset = 0;
+//		for (int rowidx = 0; rowidx < rows.size(); rowidx++) {
+//			ArrayList cols = (ArrayList) rows.get(rowidx);
+//			int rsize = (int) heights[rowidx];
+//			for (int j = 0; j < cols.size(); j++) {
+//				Entry entry = (Entry) cols.get(j);
+//				float offset = 0;
+//				for (int k = 0; k < j; k++) {
+//					offset += colWidths[k] * perUnit;
+//				}
+//				if (entry.getType() == 0 || entry.getType() == 1) {
+//					// Text
+//					g.drawRect((int) (xoff + offset),
+//							(int) (yoff + roffset),
+//							(int) (colWidths[j] * perUnit), rsize);
+//
+//					String[] lines = getLines(entry.getValue().toString(), (int)(colWidths[j] * perUnit), g.getFontMetrics(), (int) style.getPadding()  * PLACEHOLDER_SCALE);
+//					
+//					for(int i = 0; i < lines.length; i++) {
+//						g.drawString(lines[i].toString(), (int) (xoff
+//								+ offset + padding / PLACEHOLDER_SCALE), (int) (yoff + padding
+//								+ roffset + (i + 1) * g.getFontMetrics().getHeight() * this.perUnitHeight));
+//					}
+//					//g.drawString(entry.getValue().toString(), (int) (xoff
+//					//		+ offset + padding / PLACEHOLDER_SCALE), (int) (yoff + padding
+//					//		+ roffset + font.getSize() * this.perUnitHeight));
+//				} else if (entry.getType() == 2) {
+//					// Image ...
+//					BufferedImage image;
+//					try {
+//						if (this.getEmblem() != null
+//								&& this.getEmblem().getFileName() != null
+//								&& new File(this.getEmblem().getFileName())
+//										.exists()) {
+//							image = ImageIO.read(new File(this.getEmblem()
+//									.getFileName()));
+//						} else {
+//							image = ImageIO.read(new File(PDFASHelper
+//									.getWorkDir()
+//									+ File.separator
+//									+ entry.getValue().toString()));
+//						}
+//						int imgWidth = 30 * PLACEHOLDER_SCALE;
+//						int imgHeight = 30 * PLACEHOLDER_SCALE;
+//						Image img = image.getScaledInstance(imgWidth, imgHeight,
+//								Image.SCALE_SMOOTH);
+//
+//						g.drawImage(
+//								img,
+//								(int) (xoff + offset + padding + (((colWidths[j] * perUnit) - imgWidth - 2* padding)) / 2),
+//								(int) (yoff + roffset + padding + ((rsize - imgHeight - 2* padding) / 2)),
+//								null);
+//					} catch (IOException e) {
+//						log.warn("Failed to paint emblem to placeholder image");
+//					}
+//				} else {
+//					// Table
+//
+//					int colWidth = (int) (colWidths[j] * perUnit);
+//					
+//					float[] cheights = this.getTableHeights(
+//							(Table) entry.getValue(), style, rsize, colWidth, g);
+//
+//					this.drawTable(
+//							(int) (xoff + offset),
+//							(int) (yoff + roffset),
+//							(int) (colWidths[j] * perUnit),
+//							// (int)this.getTableHeight((Table)
+//							// entry.getValue(), style),
+//							rsize, (Table) entry.getValue(), style, g,
+//							cheights);
+//					/*
+//					 * if (rsize < tsize) { rsize = tsize; }
+//					 */
+//				}
+//			}
+//			roffset += rsize;
+//		}
+//
+//		g.setFont(oldFont);
+//
+//		return (int) roffset;
+//	}
+//
+//	private static Font getFont(Style style) {
+//		String def = "COURIER-NORMAL-8";
+//		String fontString = style.getFont();
+//		String[] font_arr = fontString.split(",");
+//		if (font_arr.length != 3) {
+//			return Font.decode(def);
+//		}
+//		Font font = Font.decode(String.format("%s-%s-%s", font_arr[0], font_arr[2],
+//				font_arr[1]));
+//		return font.deriveFont((float) font.getSize() * PLACEHOLDER_SCALE);
+//	}
+//
+//	/**
+//	 * extracts the value font
+//	 * 
+//	 * @param style
+//	 *            the table style
+//	 * @return the value font
+//	 */
+//	@SuppressWarnings("unused")
+//	private static Font getValueFont(Style style) {
+//		String def = "COURIER-NORMAL-8";
+//		String fontString = style.getValueFont();
+//		String[] font_arr = fontString.split(",");
+//		if (font_arr.length != 3) {
+//			return Font.decode(def);
+//		}
+//		Font font = Font.decode(String.format("%s-%s-%s", font_arr[0], font_arr[2],
+//				font_arr[1]));
+//		return font.deriveFont((float) font.getSize() * PLACEHOLDER_SCALE);
+//	}
+//
+//	private static String[] getLines(String text, int width, FontMetrics fmetric, int padding) {
+//		String currentline = text;
+//		int averageCharWi = fmetric.charWidth('c');
+//		
+//		int max_line_chars = (width - padding) / (averageCharWi);
+//		ArrayList<String> lines = new ArrayList<String>();
+//		
+//		while(currentline.length() > max_line_chars) {
+//			int cutidx = currentline.substring(0, max_line_chars).lastIndexOf(' ');
+//			if(cutidx < 1)  {
+//				cutidx = max_line_chars - 1;
+//			} else {
+//				cutidx++;
+//			}
+//			String tmpLine = currentline.substring(0, cutidx);
+//			lines.add(tmpLine);
+//			currentline = currentline.substring(cutidx);
+//		}
+//		lines.add(currentline);
+//		
+//		
+//		String[] arrline = new String[lines.size()];
+//		for(int i = 0; i < lines.size(); i++) {
+//			arrline[i] = lines.get(i);
+//		}
+//		
+//		//log.debug(text + " needs " + lines.size() + " lines");
+//		
+//		return arrline;
+//	}
+//	
+//	@SuppressWarnings("rawtypes")
+//	private float[] getTableHeights(Table table, Style parentstyle, float height, int width, Graphics g) {
+//		ArrayList rows = table.getRows();
+//		float[] sizes = new float[rows.size()];
+//		Style style = parentstyle;
+//		if (table.getStyle() != null) {
+//			style = table.getStyle(); 
+//		}
+//		Font font = PdfAsSignatureParameter.getFont(style);
+//		g.setFont(font);
+//		
+//		float total_height = this.getTableHeight(table, parentstyle, width, g);
+//
+//		float perUnit = height / total_height;
+//		
+//		this.perUnitHeight = perUnit;
+//
+//		float[] colWidths = table.getColsRelativeWith();
+//		float sum = 0;
+//
+//		for (int i = 0; i < colWidths.length; i++) {
+//			sum += colWidths[i];
+//		}
+//
+//		float perUnitWidth = width / sum;		
+//
+//		for (int i = 0; i < rows.size(); i++) {
+//			Object robj = rows.get(i);
+//			ArrayList cols = (ArrayList) robj;
+//			float tsize = 0;
+//			float rsize = 0;
+//			for (int j = 0; j < cols.size(); j++) {
+//				Entry entry = (Entry) cols.get(j);
+//				if (entry.getType() == 0 || entry.getType() == 1) {
+//					int colWidth = (int) (colWidths[j] * perUnitWidth);
+//					
+//					float trsize = getLines(entry.getValue().toString(), colWidth, g.getFontMetrics(), (int) style.getPadding()  * PLACEHOLDER_SCALE).length * g.getFontMetrics().getHeight() + (style.getPadding()  * PLACEHOLDER_SCALE * 2);
+//					
+//					if (rsize < trsize) {
+//						rsize = trsize;
+//					}
+//				} else if (entry.getType() == 3) {
+//					
+//					int colWidth = (int) (colWidths[j] * perUnitWidth);
+//					
+//					tsize = this
+//							.getTableHeight((Table) entry.getValue(), style, colWidth, g);
+//					if (rsize < tsize) {
+//						rsize = tsize;
+//					}
+//				}
+//			}
+//			sizes[i] = perUnit * rsize;
+//		}
+//
+//		return sizes;
+//	}
+//
+//	@SuppressWarnings("rawtypes")
+//	private float getTableHeight(Table table, Style parentstyle, int width, Graphics g) {
+//		ArrayList rows = table.getRows();
+//		Style style = parentstyle;
+//		if (table.getStyle() != null) {
+//			style = table.getStyle();
+//		}
+//		float size = 0;
+//		
+//		float[] colWidths = table.getColsRelativeWith();
+//		float sum = 0;
+//
+//		for (int i = 0; i < colWidths.length; i++) {
+//			sum += colWidths[i];
+//		}
+//
+//		float perUnitWidth = width / sum;
+//		
+//		for (int i = 0; i < rows.size(); i++) {
+//			Object robj = rows.get(i);
+//			ArrayList cols = (ArrayList) robj;
+//			float tsize = 0;
+//			float rsize = 0;
+//			for (int j = 0; j < cols.size(); j++) {
+//				Entry entry = (Entry) cols.get(j);
+//				if (entry.getType() == 0 || entry.getType() == 1) {
+//					int colWidth = (int) (colWidths[j] * perUnitWidth);
+//					
+//					float trsize = getLines(entry.getValue().toString(), colWidth, g.getFontMetrics(), (int) style.getPadding()  * PLACEHOLDER_SCALE).length * g.getFontMetrics().getHeight() + (style.getPadding()  * PLACEHOLDER_SCALE * 2);
+//					
+//					if (rsize < trsize) {
+//						rsize = trsize;
+//					}
+//					
+//					/*if (rsize < ((style.getPadding() * PLACEHOLDER_SCALE * 2) + fontSize)) {
+//						rsize = ((style.getPadding() * PLACEHOLDER_SCALE * 2) + fontSize);
+//					}*/
+//				} else if (entry.getType() == 3) {
+//					int colWidth = (int) (colWidths[j] * perUnitWidth);
+//					tsize = this
+//							.getTableHeight((Table) entry.getValue(), style, colWidth, g);
+//					if (rsize < tsize) {
+//						rsize = tsize;
+//					}
+//				}
+//			}
+//			size += rsize;
+//		}
+//
+//		return size;
+//	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/exceptions/PDFASSLRequestException.java b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/exceptions/PDFASSLRequestException.java
new file mode 100644
index 00000000..ceb25779
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/java/at/asit/pdfover/signer/pdfas/exceptions/PDFASSLRequestException.java
@@ -0,0 +1,34 @@
+/*
+ * 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.exceptions;
+
+/**
+ * 
+ */
+public class PDFASSLRequestException extends Exception {
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -7515747014505057787L;
+	
+	/**
+	 * Constructor
+	 * @param msg
+	 */
+	public PDFASSLRequestException(String msg) {
+		super(msg);
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/fallbackPlaceholder.png b/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/fallbackPlaceholder.png
new file mode 100644
index 00000000..4baafc19
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/fallbackPlaceholder.png
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/sign_prev_de.png b/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/sign_prev_de.png
new file mode 100644
index 00000000..c8ca09f4
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/sign_prev_de.png
diff --git a/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/sign_prev_en.png b/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/sign_prev_en.png
new file mode 100644
index 00000000..aa450fcc
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas3/src/main/resources/img/sign_prev_en.png