closes #201

library/src/main/java/org/mustangproject/Invoice.java

@@ -40,6 +40,7 @@ public class Invoice implements IExportableTransaction {
 	protected ArrayList<IZUGFeRDExportableItem> ZFItems = null;
 	protected ArrayList<String> notes = null;
 	protected String contractReferencedDocument = null;
+	protected ArrayList<FileAttachment> xmlEmbeddedFiles=null;
 
 	protected Date detailedDeliveryDateStart = null;
 	protected Date detailedDeliveryPeriodEnd = null;
@@ -78,6 +79,22 @@ public class Invoice implements IExportableTransaction {
 		return this;
 	}
 
+	public Invoice embedFileInXML(FileAttachment fa) {
+		if (xmlEmbeddedFiles == null) {
+			xmlEmbeddedFiles=new ArrayList<FileAttachment>();
+		}
+		xmlEmbeddedFiles.add(fa);
+		return this;
+	}
+
+	public FileAttachment[] getAdditionalReferencedDocuments() {
+		if (xmlEmbeddedFiles == null) {
+			return null;
+		}
+		return xmlEmbeddedFiles.toArray(new FileAttachment[0]);
+
+	}
+
 
 	@Override
 	public String getNumber() {

library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java

@@ -442,7 +442,7 @@ public class ZUGFeRD2PullProvider implements IXMLProvider {
 						+ "    <ram:TypeCode>916</ram:TypeCode>\n"
 						+ "    <ram:Name>" + f.getDescription() + "</ram:Name>\n"
 						+ "    <ram:AttachmentBinaryObject mimeCode=\"" + f.getMimetype() + "\"\n"
-						+ "      filename=\"" + f.getFilename() + "\">" + documentContent + "\n"
+						+ "      filename=\"" + f.getFilename() + "\">" + documentContent + "</ram:AttachmentBinaryObject>\n"
 						+ "  </ram:AdditionalReferencedDocument>\n";
 			}
 		}