Index: pdfbox/src/main/java/org/apache/pdfbox/cos/COSName.java
===================================================================
--- pdfbox/src/main/java/org/apache/pdfbox/cos/COSName.java	(revision 943207)
+++ pdfbox/src/main/java/org/apache/pdfbox/cos/COSName.java	(working copy)
@@ -699,6 +699,10 @@
     */
     public static final COSName RUN_LENGTH_DECODE_ABBREVIATION = new COSName( "RL" );
     /**
+    * The Crypt filter.
+    */
+    public static final COSName CRYPT = new COSName( "Crypt" );
+    /**
      * "S"
      */
     public static final COSName S = new COSName("S");
Index: pdfbox/src/main/java/org/apache/pdfbox/filter/FilterManager.java
===================================================================
--- pdfbox/src/main/java/org/apache/pdfbox/filter/FilterManager.java	(revision 943207)
+++ pdfbox/src/main/java/org/apache/pdfbox/filter/FilterManager.java	(working copy)
@@ -46,6 +46,7 @@
         Filter asciiHexFilter = new ASCIIHexFilter();
         Filter ascii85Filter = new ASCII85Filter();
         Filter runLengthFilter = new RunLengthDecodeFilter();
+        CryptFilter cryptFilter = new CryptFilter();
 
         addFilter( COSName.FLATE_DECODE, flateFilter );
         addFilter( COSName.FLATE_DECODE_ABBREVIATION, flateFilter );
@@ -61,7 +62,7 @@
         addFilter( COSName.ASCII85_DECODE_ABBREVIATION, ascii85Filter );
         addFilter( COSName.RUN_LENGTH_DECODE, runLengthFilter );
         addFilter( COSName.RUN_LENGTH_DECODE_ABBREVIATION, runLengthFilter );
-
+        addFilter( COSName.CRYPT, cryptFilter );
     }
 
     /**