diff --git a/Dockerfile b/Dockerfile
index e3d2156..2bbbbd9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,9 @@
-FROM tomcat:7-jre7-alpine
-
-RUN apk --update add python openssl \
-    rsync unison grep openssh-client \
-    perl poppler-utils sed bash
+FROM tomcat:7-jre7
 
+RUN apt-get update \
+    && apt-get install -y \
+        python perl bash grep sed \
+        rsync unison openssl openssh-client \
+        poppler-utils pdftk \
+        namazu2 namazu2-index-tools unzip wv xpdf-utils \
+    && apt-get clean -y
diff --git a/README.md b/README.md
index 2387840..6ab6c4d 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 Tomcat 7 with additional software such as Python, Perl, PDF utils
 
+Made especially for usage of iwa-ait.org (International Workers Association).
+Feel free to use it and redistribute it, but consider that it will be always fitting the needs of iwa-ait usage.