diff -up itext-2.1.5/src/core/com/lowagie/text/pdf/RandomAccessFileOrArray.java.pdftk itext-2.1.5/src/core/com/lowagie/text/pdf/RandomAccessFileOrArray.java
--- itext-2.1.5/src/core/com/lowagie/text/pdf/RandomAccessFileOrArray.java.pdftk	2009-04-21 18:12:02.000000000 +0200
+++ itext-2.1.5/src/core/com/lowagie/text/pdf/RandomAccessFileOrArray.java	2009-04-21 18:17:08.000000000 +0200
@@ -99,7 +99,11 @@ public class RandomAccessFileOrArray imp
                 }
             }
             else {
-                InputStream is = BaseFont.getResourceStream(filename);
+		InputStream is;
+		if( filename.equals("-"))
+		    is = System.in;
+		else
+		    is = BaseFont.getResourceStream(filename);
                 if (is == null)
                     throw new IOException(filename + " not found as file or resource.");
                 try {