diff --git a/README_package.md b/README_package.md
index 0b6fa9d..b86bfb2 100644
--- a/README_package.md
+++ b/README_package.md
@@ -1,7 +1,7 @@
 Introduction
 ------------
 
-libgourou is a free implementation of Adobe's ADEPT protocol used to add DRM on ePub files. It overcome the lacks of Adobe support for Linux platforms.
+libgourou is a free implementation of Adobe's ADEPT protocol used to add DRM on ePub/PDF files. It overcome the lacks of Adobe support for Linux platforms.
 
 
 
@@ -24,18 +24,22 @@ For utils :
 Utils
 -----
 
-You can import configuration from your eReader or create a new one with activate :
+You can import configuration from your eReader or create a new one with utils/activate :
 
     export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD
-    ./activate -u <AdobeID USERNAME>
+    ./utils/activate -u <AdobeID USERNAME>
 
 Then a _./.adept_ directory is created with all configuration file
 
-To download an ePub :
+To download an ePub/PDF :
 
     export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD
-    ./acsmdownloader -f <ACSM_FILE>
+    ./utils/acsmdownloader -f <ACSM_FILE>
 
+To export your private key :
+
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD
+    ./utils/acsmdownloader --export-private-key [-o adobekey_1.der]
 
 
 Sources
@@ -65,4 +69,4 @@ Special thanks
 --------------
 
   * _Jens_ for all test samples and utils testing
-  
\ No newline at end of file
+