diff --git a/cpdfcommand.ml b/cpdfcommand.ml
index 0a6ca1c..145224c 100644
--- a/cpdfcommand.ml
+++ b/cpdfcommand.ml
@@ -3606,7 +3606,7 @@ let go () =
         let fixid s = implode (rev (tl (rev (tl (explode s))))) in
         if args.format_json
           then json =| ("ID", if ida ^ idb = "" then `Null else `List [`String (fixid ida); `String (fixid idb)])
-          else (if ida ^ idb = "" then Printf.printf "ID: None" else Printf.printf "ID: %s %s\n" ida idb);
+          else (if ida ^ idb = "" then Printf.printf "ID: None\n" else Printf.printf "ID: %s %s\n" ida idb);
         let pdf = decrypt_if_necessary input (Some Info) pdf in
           if args.format_json then
             begin
diff --git a/cpdfmanual.pdf b/cpdfmanual.pdf
index 192f1ea..f4a7148 100644
Binary files a/cpdfmanual.pdf and b/cpdfmanual.pdf differ
diff --git a/cpdfmanual.tex b/cpdfmanual.tex
index 15e950f..1acac91 100644
--- a/cpdfmanual.tex
+++ b/cpdfmanual.tex
@@ -2983,7 +2983,7 @@ annotations on the selected pages to standard output. Each annotation is precede
   ]
 \end{verbatim}}
 
-\noindent Extra objects required for annotations, but which are not annotations themselves are also extracted. They omit the page number, being just a pair of the object number and object. The CPDFJSON format is described on page \pageref{cpdfjson}.
+\noindent Extra objects required for annotations, but which are not annotations themselves are also extracted. They omit the page number, being just a pair of the object number and object. The CPDFJSON format is described on page \pageref{cpdfjson}. There is an additional object, -1, which gives the CPDF annotation format version, currently 1.
 
 \section{Setting annotations}