1 files changed, 18 insertions, 0 deletions
diff --git a/src/org/apache/fop/apps/StreamRenderer.java b/src/org/apache/fop/apps/StreamRenderer.java
index d18ddd6cd..1c22a2e45 100644
--- a/src/org/apache/fop/apps/StreamRenderer.java
+++ b/src/org/apache/fop/apps/StreamRenderer.java
@@ -82,6 +82,11 @@ public class StreamRenderer {
     */
     private IDReferences idReferences = new IDReferences();
 
+    /**
+     * The list of extensions.
+     */
+    private Vector extensions = new Vector();
+
     private Logger log;
 
     public StreamRenderer(OutputStream outputStream, Renderer renderer) {
@@ -97,6 +102,10 @@ public class StreamRenderer {
         return idReferences;
     }
 
+    public void addExtension(ExtensionObj ext) {
+        extensions.addElement(ext);
+    }
+
     public void startRenderer()
     throws SAXException {
         pageCount = 0;
@@ -169,6 +178,15 @@ public class StreamRenderer {
         AreaTree a = new AreaTree(this);
         a.setFontInfo(fontInfo);
 
+        for(Enumeration e = extensions.elements(); e.hasMoreElements(); ) {
+            ExtensionObj ext = (ExtensionObj)e.nextElement();
+            try {
+                ext.format(a);
+            } catch (FOPException fope) {
+                throw new SAXException(fope);
+            }
+        }
+
         try {
             pageSequence.format(a);
         } catch (FOPException e) {