1 files changed, 9 insertions, 0 deletions
diff --git a/src/java/org/apache/fop/pdf/PDFFont.java b/src/java/org/apache/fop/pdf/PDFFont.java
index 497565e9c..14f1a657c 100644
--- a/src/java/org/apache/fop/pdf/PDFFont.java
+++ b/src/java/org/apache/fop/pdf/PDFFont.java
@@ -19,6 +19,9 @@
  
 package org.apache.fop.pdf;
 
+import java.io.IOException;
+import java.io.OutputStream;
+
 import org.apache.fop.fonts.FontType;
 
 /**
@@ -163,5 +166,11 @@ public class PDFFont extends PDFDictionary {
             }
         }
     }
+
+    /** {@inheritDoc} */
+    protected int output(OutputStream stream) throws IOException {
+        validate();
+        return super.output(stream);
+    }
     
 }