Index: pdfbox/src/main/java/org/apache/pdfbox/cos/COSNumber.java
===================================================================
--- pdfbox/src/main/java/org/apache/pdfbox/cos/COSNumber.java	(revision 1645676)
+++ pdfbox/src/main/java/org/apache/pdfbox/cos/COSNumber.java	(working copy)
@@ -97,7 +97,14 @@
         {
             try
             {
-                return COSInteger.get( Long.parseLong( number ) );
+                if (number.charAt(0) == '+')
+                {
+                    return COSInteger.get( Long.parseLong( number.substring(1) ) );
+                }
+                else
+                {
+                    return COSInteger.get( Long.parseLong( number ) );
+                }
             }
             catch( NumberFormatException e )
             {