WIP: pdfbox table to Sign AP

12 files changed, 465 insertions, 13 deletions

diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
index a2ad3575..3fdfb576 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
@@ -530,7 +530,7 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
 			return;
 		}
 
-		if (requestedSignature.isVisual()) {
+		if (requestedSignature.isVisual() && false) {
 			logger.info("Creating visual siganture block");
 			// ================================================================
 			// SignBlockCreationStage (visual) -> create visual signature
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
index d93ff5e1..93c19fe5 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
@@ -36,6 +36,7 @@ import org.apache.pdfbox.exceptions.COSVisitorException;
 import org.apache.pdfbox.exceptions.SignatureException;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.SignatureOptions;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -48,6 +49,7 @@ import at.gv.egiz.pdfas.lib.impl.signing.IPdfSigner;
 import at.gv.egiz.pdfas.lib.impl.signing.sig_interface.PDFASSignatureInterface;
 import at.gv.egiz.pdfas.lib.impl.stamping.TableFactory;
 import at.gv.egiz.pdfas.lib.impl.stamping.ValueResolver;
+import at.gv.egiz.pdfas.lib.impl.stamping.pdfbox.PDFAsVisualSignatureProperties;
 import at.gv.egiz.pdfas.lib.impl.status.PDFObject;
 import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature;
 
@@ -103,8 +105,15 @@ public class PADESPDFBOXSigner implements IPdfSigner {
             //signature.setSignDate(signer.getSigningDate());
 
             signer.setPDSignature(signature);
+            SignatureOptions options = new SignatureOptions();
             
-            doc.addSignature(signature, signer);
+            // FOR DEVELOPING: Call custom visual signature creation
+            PDFAsVisualSignatureProperties properties = new PDFAsVisualSignatureProperties(
+            		pdfObject.getStatus().getSettings(), pdfObject);
+            properties.buildSignature();
+            options.setVisualSignature(properties.getVisibleSignature());
+            
+            doc.addSignature(signature, signer, options);
 
             // pdfbox patched (FIS -> IS)
             doc.saveIncremental(fis, fos);
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/CertificateResolver.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/CertificateResolver.java
index 0aacb1b0..42f81f42 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/CertificateResolver.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/CertificateResolver.java
@@ -37,6 +37,7 @@ import org.slf4j.LoggerFactory;
 import at.gv.egiz.pdfas.common.settings.SignatureProfileSettings;
 import at.gv.egiz.pdfas.common.utils.DNUtils;
 import at.gv.egiz.pdfas.common.utils.OgnlUtils;
+import at.gv.egiz.pdfas.lib.impl.status.ICertificateProvider;
 import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature;
 
 public class CertificateResolver implements IResolver {
@@ -69,7 +70,7 @@ public class CertificateResolver implements IResolver {
     }
 
     public String resolve(String key, String value, SignatureProfileSettings settings,
-    		RequestedSignature signature) {
+    		ICertificateProvider signature) {
         return OgnlUtils.resolvsOgnlExpression(value, this.ctx);
     }
 
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/IResolver.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/IResolver.java
index 4ba365fa..8c38039f 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/IResolver.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/IResolver.java
@@ -24,6 +24,7 @@
 package at.gv.egiz.pdfas.lib.impl.stamping;
 
 import at.gv.egiz.pdfas.common.settings.SignatureProfileSettings;
+import at.gv.egiz.pdfas.lib.impl.status.ICertificateProvider;
 import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature;
 
 /**
@@ -35,5 +36,5 @@ import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature;
  */
 public interface IResolver {
     public String resolve(String key, String value, SignatureProfileSettings settings,
-    		RequestedSignature signature);
+    		ICertificateProvider signature);
 }
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/TableFactory.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/TableFactory.java
index cbda8e95..038e9a88 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/TableFactory.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/TableFactory.java
@@ -26,6 +26,7 @@ package at.gv.egiz.pdfas.lib.impl.stamping;
 import at.gv.egiz.pdfas.common.settings.IProfileConstants;
 import at.gv.egiz.pdfas.common.settings.ISettings;
 import at.gv.egiz.pdfas.common.settings.SignatureProfileSettings;
+import at.gv.egiz.pdfas.lib.impl.status.ICertificateProvider;
 import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature;
 import at.knowcenter.wag.egov.egiz.pdf.sig.SignatureEntry;
 import at.knowcenter.wag.egov.egiz.table.Entry;
@@ -96,7 +97,7 @@ public class TableFactory implements IProfileConstants {
      * @see at.knowcenter.wag.egov.egiz.table.Entry
      */
     public static Table createSigTable(SignatureProfileSettings profile, String tableID, ISettings configuration,
-    		RequestedSignature requestedSignature)
+    		ICertificateProvider certProvider)
     {
         String table_key_prefix = SIG_OBJ + profile.getProfileID() + "." + TABLE;
         String table_key = table_key_prefix + tableID;
@@ -160,7 +161,7 @@ public class TableFactory implements IProfileConstants {
                     if (TYPE_TABLE.equals(key))
                     {
                         // add a table entry
-                        Table table = createSigTable(profile, type, configuration, requestedSignature);
+                        Table table = createSigTable(profile, type, configuration, certProvider);
                         if (table != null)
                         {
                             Entry entry = new Entry(Entry.TYPE_TABLE, table, key);
@@ -188,7 +189,7 @@ public class TableFactory implements IProfileConstants {
                     	 ValueResolver resolver = new ValueResolver();
                         String value = profile.getValue(key);
                         Entry entry = new Entry(Entry.TYPE_VALUE, 
-                        		resolver.resolve(key, value, profile, requestedSignature), key);
+                        		resolver.resolve(key, value, profile, certProvider), key);
                         if (entry != null)
                         {
                             entry.setColSpan(2);
@@ -210,7 +211,7 @@ public class TableFactory implements IProfileConstants {
                             c_entry.setStyle(defaultCaptionStyle_);
                             ValueResolver resolver = new ValueResolver();
                             Entry v_entry = new Entry(Entry.TYPE_VALUE, 
-                            		resolver.resolve(key, value, profile, requestedSignature), key);
+                            		resolver.resolve(key, value, profile, certProvider), key);
                             v_entry.setStyle(defaultValueStyle_);
                             if (c_entry != null && v_entry != null)
                             {
@@ -226,7 +227,7 @@ public class TableFactory implements IProfileConstants {
                             ValueResolver resolver = new ValueResolver();
 
                             Entry v_entry = new Entry(Entry.TYPE_VALUE,
-                                    resolver.resolve(key, value, profile, requestedSignature), key);
+                                    resolver.resolve(key, value, profile, certProvider), key);
                             v_entry.setStyle(defaultValueStyle_);
                             if (c_entry != null && v_entry != null)
                             {
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/ValueResolver.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/ValueResolver.java
index dc24f40f..ebd5c962 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/ValueResolver.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/ValueResolver.java
@@ -33,6 +33,7 @@ import org.slf4j.LoggerFactory;
 
 import at.gv.egiz.pdfas.common.settings.IProfileConstants;
 import at.gv.egiz.pdfas.common.settings.SignatureProfileSettings;
+import at.gv.egiz.pdfas.lib.impl.status.ICertificateProvider;
 import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature;
 
 /**
@@ -52,7 +53,7 @@ public class ValueResolver implements IProfileConstants, IResolver {
 	public static final String EXP_END = "}";
 
 	public String resolve(String key, String value,
-			SignatureProfileSettings settings, RequestedSignature signature) {
+			SignatureProfileSettings settings, ICertificateProvider certProvider) {
 
 		logger.debug("Resolving value for key: " + key);
 		logger.debug("Resolving value with value: " + value);
@@ -72,7 +73,7 @@ public class ValueResolver implements IProfileConstants, IResolver {
 			Pattern pattern = Pattern.compile(PatternRegex);
 			Matcher matcher = pattern.matcher(value);
 			CertificateResolver certificateResolver = new CertificateResolver(
-					signature.getCertificate());
+					certProvider.getCertificate());
 			String result = "";
 			int curidx = 0;
 			if (matcher.find()) {
@@ -82,7 +83,7 @@ public class ValueResolver implements IProfileConstants, IResolver {
 					result += value.substring(curidx, idx);
 					curidx = idxe;
 					result += certificateResolver.resolve(key,
-							matcher.group(1), settings, signature);
+							matcher.group(1), settings, certProvider);
 				} while (matcher.find());
 			} else {
 				result = value;
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureBuilder.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureBuilder.java
new file mode 100644
index 00000000..496bc0d8
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureBuilder.java
@@ -0,0 +1,173 @@
+package at.gv.egiz.pdfas.lib.impl.stamping.pdfbox;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+import org.apache.pdfbox.cos.COSName;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.common.PDStream;
+import org.apache.pdfbox.pdmodel.edit.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.font.PDType1Font;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSignDesigner;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.gv.egiz.pdfas.lib.test.mains.TestPDFBoxTable;
+import at.knowcenter.wag.egov.egiz.table.Entry;
+import at.knowcenter.wag.egov.egiz.table.Table;
+
+public class PDFAsVisualSignatureBuilder extends PDVisibleSigBuilder {
+
+	private static final Logger logger = LoggerFactory
+			.getLogger(TestPDFBoxTable.class);
+
+	private static void drawTable(PDPage page,
+			PDPageContentStream contentStream, float x, float y,
+			Table abstractTable) throws IOException {
+
+		final int rows = abstractTable.getRows().size();
+		final int cols = abstractTable.getMaxCols();
+		float[] colsSizes = abstractTable.getColsRelativeWith();
+		int max_cols = abstractTable.getMaxCols();
+		if (colsSizes == null) {
+			colsSizes = new float[max_cols];
+			// set the column ratio for all columns to 1
+			for (int cols_idx = 0; cols_idx < colsSizes.length; cols_idx++) {
+				colsSizes[cols_idx] = 1;
+			}
+		}
+
+		logger.info("TOTAL Col: " + abstractTable.getWidth());
+
+		float total = 0;
+
+		for (int cols_idx = 0; cols_idx < colsSizes.length; cols_idx++) {
+			total += colsSizes[cols_idx];
+		}
+
+		for (int cols_idx = 0; cols_idx < colsSizes.length; cols_idx++) {
+			colsSizes[cols_idx] = (colsSizes[cols_idx] / total)
+					* abstractTable.getWidth();
+		}
+
+		for (int cols_idx = 0; cols_idx < colsSizes.length; cols_idx++) {
+			logger.info("Col: " + cols_idx + " : " + colsSizes[cols_idx]);
+		}
+
+		final float cellMargin = 5f;
+		final float rowHeight = 12f + 2 * cellMargin;
+		final float tableWidth = abstractTable.getWidth();
+		final float tableHeight = rowHeight * rows;
+		final float colWidth = tableWidth / (float) cols;
+
+		// draw the rows
+		float nexty = y;
+		for (int i = 0; i <= rows; i++) {
+			contentStream.drawLine(x, nexty, x + tableWidth, nexty);
+			nexty -= rowHeight;
+		}
+
+		// draw the columns
+		float nextx = x;
+		for (int i = 0; i <= cols; i++) {
+			contentStream.drawLine(nextx, y, nextx, y - tableHeight);
+			if (i < colsSizes.length) {
+				nextx += (colsSizes != null) ? colsSizes[i] : colWidth;
+			}
+		}
+
+		float textx = x + cellMargin;
+		float texty = y - 15;
+		for (int i = 0; i < abstractTable.getRows().size(); i++) {
+			ArrayList row = (ArrayList) abstractTable.getRows().get(i);
+			for (int j = 0; j < row.size(); j++) {
+				Entry cell = (Entry) row.get(j);
+				String text = cell.toString();
+				text = "Hallo";
+				COSName name = COSName.getPDFName("ANDI_TAG!");
+				contentStream.beginMarkedContentSequence(COSName.ALT, name);
+				contentStream.beginText();
+				logger.info("Writing: " + textx + " : " + texty + " = " + text);
+				contentStream.moveTextPositionByAmount(textx, texty);
+
+				if (text.contains("\n")) {
+					String[] lines = text.split("\n");
+					contentStream.appendRawCommands(10 + " TL\n");
+					for (int k = 0; k < lines.length; k++) {
+						contentStream.drawString(lines[k]);
+						if (k < lines.length - 1) {
+							contentStream.appendRawCommands("T*\n");
+						}
+					}
+				} else {
+					contentStream.drawString(text);
+				}
+				contentStream.endText();
+				contentStream.endMarkedContentSequence();
+				textx += (colsSizes != null) ? colsSizes[j] : colWidth;
+			}
+			texty -= rowHeight;
+			textx = x + cellMargin;
+		}
+	}
+
+	private PDFAsVisualSignatureProperties properties;
+
+	public PDFAsVisualSignatureBuilder(PDFAsVisualSignatureProperties properties) {
+		this.properties = properties;
+	}
+
+	@Override
+	public void createTemplate(PDPage page) throws IOException {
+		PDDocument template = new PDDocument();
+
+		template.addPage(page);
+		getStructure().setTemplate(template);
+	}
+
+	@Override
+	public void createInnerFormStream(PDDocument template) {
+		try {
+			PDPageContentStream stream = new PDPageContentStream(template,
+					getStructure().getPage());
+			stream.setFont(PDType1Font.HELVETICA_BOLD, 12);
+			drawTable(getStructure().getPage(), stream, 0, 0,
+					properties.getMainTable());
+			stream.close();
+			PDStream innterFormStream = getStructure().getPage().getContents();
+			getStructure().setInnterFormStream(innterFormStream);
+			logger.info("Strean of another form (inner form - it would be inside holder form) has been created");
+
+		} catch (Throwable e) {
+			e.printStackTrace();
+		}
+	}
+	
+	   @Override
+	    public void injectAppearanceStreams(PDStream holderFormStream, PDStream innterFormStream, PDStream imageFormStream,
+	            String imageObjectName, String imageName, String innerFormName, PDVisibleSignDesigner properties)
+	            throws IOException
+	    {
+
+	        // 100 means that document width is 100% via the rectangle. if rectangle
+	        // is 500px, images 100% is 500px.
+	        // String imgFormComment = "q "+imageWidthSize+ " 0 0 50 0 0 cm /" +
+	        // imageName + " Do Q\n" + builder.toString();
+	        String imgFormComment = "q " + 100 + " 0 0 50 0 0 cm /" + imageName + " Do Q\n";
+	        String holderFormComment = "q 1 0 0 1 0 0 cm /" + innerFormName + " Do Q \n";
+	        String innerFormComment = "q 1 0 0 1 0 0 cm /" + imageObjectName + " Do Q\n";
+
+	        logger.info("Holder Stream: " + getStructure().getInnterFormStream().getInputStreamAsString());
+	        
+	        //appendRawCommands(getStructure().getInnterFormStream().createOutputStream(), 
+	        //		getStructure().getInnterFormStream().getInputStreamAsString());
+	        
+	        appendRawCommands(getStructure().getHolderFormStream().createOutputStream(), holderFormComment);
+	        appendRawCommands(getStructure().getInnterFormStream().createOutputStream(), getStructure().getInnterFormStream().getInputStreamAsString());
+	        appendRawCommands(getStructure().getImageFormStream().createOutputStream(), imgFormComment);
+	        logger.info("Injected apereance stream to pdf");
+
+	    }
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureProperties.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureProperties.java
new file mode 100644
index 00000000..a3d02db2
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureProperties.java
@@ -0,0 +1,70 @@
+package at.gv.egiz.pdfas.lib.impl.stamping.pdfbox;
+
+import iaik.x509.X509Certificate;
+
+import java.io.ByteArrayInputStream;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDFTemplateBuilder;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDFTemplateCreator;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigProperties;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSignDesigner;
+
+import at.gv.egiz.pdfas.common.settings.ISettings;
+import at.gv.egiz.pdfas.common.settings.SignatureProfileSettings;
+import at.gv.egiz.pdfas.lib.impl.stamping.TableFactory;
+import at.gv.egiz.pdfas.lib.impl.status.PDFObject;
+import at.gv.egiz.pdfas.lib.test.mains.CertificateHolderRequest;
+import at.knowcenter.wag.egov.egiz.table.Table;
+
+public class PDFAsVisualSignatureProperties extends PDVisibleSigProperties {
+
+	private ISettings settings;
+
+	private Table main;
+
+	public PDFAsVisualSignatureProperties(ISettings settings, PDFObject object) {
+		this.settings = settings;
+		try {
+			SignatureProfileSettings profileSettings = TableFactory
+					.createProfile("SIGNATURBLOCK_DE", settings);
+
+			X509Certificate cert = new X509Certificate(new FileInputStream(
+					"/home/afitzek/qualified.cer"));
+
+			CertificateHolderRequest request = new CertificateHolderRequest(
+					cert);
+
+			main = TableFactory.createSigTable(profileSettings, "main",
+					settings, request);
+
+			main.setWidth(400);
+		} catch (Throwable e) {
+			e.printStackTrace();
+		}
+		try {
+			PDDocument origDoc = PDDocument.load(new ByteArrayInputStream(
+					object.getStampedDocument()));
+			PDVisibleSignDesigner designer = new PDVisibleSignDesigner(origDoc,
+					new FileInputStream("/home/afitzek/.pdfas/images/signatur-logo_de.png"), 1);
+
+			this.setPdVisibleSignature(designer);
+		} catch (Throwable e) {
+			e.printStackTrace();
+		}
+	}
+
+	@Override
+	public void buildSignature() throws IOException {
+		PDFTemplateBuilder builder = new PDFAsVisualSignatureBuilder(this);
+		PDFTemplateCreator creator = new PDFTemplateCreator(builder);
+		setVisibleSignature(creator.buildPDF(getPdVisibleSignature()));
+	}
+
+	public Table getMainTable() {
+		return main;
+	}
+
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PdfBoxStamper.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PdfBoxStamper.java
new file mode 100644
index 00000000..559c8c9b
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PdfBoxStamper.java
@@ -0,0 +1,143 @@
+package at.gv.egiz.pdfas.lib.impl.stamping.pdfbox;
+
+import java.io.InputStream;
+
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.common.PDRectangle;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDFTemplateBuilder;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDFTemplateStructure;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSignDesigner;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
+import at.gv.egiz.pdfas.common.settings.ISettings;
+import at.gv.egiz.pdfas.lib.impl.stamping.IPDFStamper;
+import at.gv.egiz.pdfas.lib.impl.stamping.IPDFVisualObject;
+import at.gv.egiz.pdfas.lib.impl.status.PDFObject;
+import at.knowcenter.wag.egov.egiz.pdf.PositioningInstruction;
+import at.knowcenter.wag.egov.egiz.table.Table;
+
+public class PdfBoxStamper implements IPDFStamper {
+
+	private static final Logger logger = LoggerFactory.getLogger(PdfBoxStamper.class);
+	
+	private PDFTemplateBuilder pdfBuilder;
+	
+	public PdfBoxStamper() {
+		this.pdfBuilder = new PDVisibleSigBuilder();
+	}
+	
+	/*
+	private InputStream renderTable(Table abstractTable) throws PdfAsException
+    {
+		logger.info("pdf building has been started");
+        PDFTemplateStructure pdfStructure = pdfBuilder.getStructure();
+        //pdfStructure.setIm
+        // we create array of [Text, ImageB, ImageC, ImageI]
+        this.pdfBuilder.createProcSetArray();
+         
+        //create page
+        this.pdfBuilder.createPage(properties);
+        PDPage page = pdfStructure.getPage();
+
+        //create template
+        this.pdfBuilder.createTemplate(page);
+        PDDocument template = pdfStructure.getTemplate();
+        
+        //create /AcroForm
+        this.pdfBuilder.createAcroForm(template);
+        PDAcroForm acroForm = pdfStructure.getAcroForm();
+
+        // AcroForm contains singature fields
+        this.pdfBuilder.createSignatureField(acroForm);
+        PDSignatureField pdSignatureField = pdfStructure.getSignatureField();
+        
+        // create signature
+        this.pdfBuilder.createSignature(pdSignatureField, page, properties.getSignatureFieldName());
+       
+        // that is /AcroForm/DR entry
+        this.pdfBuilder.createAcroFormDictionary(acroForm, pdSignatureField);
+        
+        // create AffineTransform
+        this.pdfBuilder.createAffineTransform(properties.getAffineTransformParams());
+        AffineTransform transform = pdfStructure.getAffineTransform();
+       
+        // rectangle, formatter, image. /AcroForm/DR/XObject contains that form
+        this.pdfBuilder.createSignatureRectangle(pdSignatureField, properties);
+        this.pdfBuilder.createFormaterRectangle(properties.getFormaterRectangleParams());
+        PDRectangle formater = pdfStructure.getFormaterRectangle();
+        this.pdfBuilder.createSignatureImage(template, properties.getImage());
+
+        // create form stream, form and  resource. 
+        this.pdfBuilder.createHolderFormStream(template);
+        PDStream holderFormStream = pdfStructure.getHolderFormStream();
+        this.pdfBuilder.createHolderFormResources();
+        PDResources holderFormResources = pdfStructure.getHolderFormResources();
+        this.pdfBuilder.createHolderForm(holderFormResources, holderFormStream, formater);
+        
+        // that is /AP entry the appearance dictionary.
+        this.pdfBuilder.createAppearanceDictionary(pdfStructure.getHolderForm(), pdSignatureField);
+        
+        // inner formstream, form and resource (hlder form containts inner form)
+        this.pdfBuilder.createInnerFormStream(template);
+        this.pdfBuilder.createInnerFormResource();
+        PDResources innerFormResource = pdfStructure.getInnerFormResources();
+        this.pdfBuilder.createInnerForm(innerFormResource, pdfStructure.getInnterFormStream(), formater);
+        PDFormXObject innerForm = pdfStructure.getInnerForm();
+       
+        // inner form must be in the holder form as we wrote
+        this.pdfBuilder.insertInnerFormToHolerResources(innerForm, holderFormResources);
+        
+        //  Image form is in this structure: /AcroForm/DR/FRM0/Resources/XObject/n0
+        this.pdfBuilder.createImageFormStream(template);
+        PDStream imageFormStream = pdfStructure.getImageFormStream();
+        this.pdfBuilder.createImageFormResources();
+        PDResources imageFormResources = pdfStructure.getImageFormResources();
+        this.pdfBuilder.createImageForm(imageFormResources, innerFormResource, imageFormStream, formater, transform,
+                pdfStructure.getImage());
+       
+        // now inject procSetArray
+        this.pdfBuilder.injectProcSetArray(innerForm, page, innerFormResource, imageFormResources, holderFormResources,
+                pdfStructure.getProcSet());
+
+        String imgFormName = pdfStructure.getImageFormName();
+        String imgName = pdfStructure.getImageName();
+        String innerFormName = pdfStructure.getInnerFormName();
+
+        // now create Streams of AP
+        this.pdfBuilder.injectAppearanceStreams(holderFormStream, imageFormStream, imageFormStream, imgFormName,
+                imgName, innerFormName, properties);
+        this.pdfBuilder.createVisualSignature(template);
+        this.pdfBuilder.createWidgetDictionary(pdSignatureField, holderFormResources);
+        
+        ByteArrayInputStream in = pdfStructure.getTemplateAppearanceStream();
+        logger.info("stream returning started, size= " + in.available());
+        
+        // we must close the document
+        template.close();
+        
+        // return result of the stream 
+        return in;
+    }
+	*/
+	
+	public IPDFVisualObject createVisualPDFObject(PDFObject pdf, Table table) {
+		
+		return null;
+	}
+
+	public byte[] writeVisualObject(IPDFVisualObject visualObject,
+			PositioningInstruction positioningInstruction, byte[] pdfData,
+			String placeholderName) throws PdfAsException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public void setSettings(ISettings settings) {
+		// TODO Auto-generated method stub
+		
+	}
+
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PdfBoxVisualObject.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PdfBoxVisualObject.java
new file mode 100644
index 00000000..25028073
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PdfBoxVisualObject.java
@@ -0,0 +1,46 @@
+package at.gv.egiz.pdfas.lib.impl.stamping.pdfbox;
+
+import at.gv.egiz.pdfas.lib.impl.stamping.IPDFVisualObject;
+
+public class PdfBoxVisualObject implements IPDFVisualObject {
+
+	public void setWidth(float width) {
+
+	}
+
+	public void fixWidth() {
+		// TODO Auto-generated method stub
+		
+	}
+
+	public float getHeight() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	public float getWidth() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	public void setXPos(float x) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	public void setYPos(float x) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	public int getPage() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	public void setPage(int page) {
+		// TODO Auto-generated method stub
+		
+	}
+
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/status/ICertificateProvider.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/status/ICertificateProvider.java
new file mode 100644
index 00000000..2ae94d2d
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/status/ICertificateProvider.java
@@ -0,0 +1,7 @@
+package at.gv.egiz.pdfas.lib.impl.status;
+
+import iaik.x509.X509Certificate;
+
+public interface ICertificateProvider {
+	public X509Certificate getCertificate();
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/status/RequestedSignature.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/status/RequestedSignature.java
index 63f6a0d7..c9cab906 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/status/RequestedSignature.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/status/RequestedSignature.java
@@ -30,7 +30,7 @@ import at.gv.egiz.pdfas.lib.api.SignaturePosition;
 import at.knowcenter.wag.egov.egiz.pdf.TablePos;
 
 
-public class RequestedSignature {
+public class RequestedSignature implements ICertificateProvider {
     private String signatureProfile;
     private TablePos tablePosition;
     private OperationStatus status;