diff --git a/docker/Dockerfile b/docker/Dockerfile
index 9e5cd690a..929cb6b9f 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,10 +1,11 @@
 # Build a docker image from latest YaCy sources
 
-# Base image : latest stable official jdk image from Docker (Debian based)
-FROM openjdk:latest
+# Base image : latest Debian stable official jdk 8 image from Docker
+FROM openjdk:8-stretch
 
-# Install needed packages not in base image
-RUN apt-get update && apt-get install -yq curl && \
+# Install needed packages not in base image 
+# (curl for sh scripts in /bin, and wkhtmltopdf,imagemagick,xvfb and ghostscript to enable PDF and image snapshot generation)
+RUN apt-get update && apt-get install -yq curl wkhtmltopdf imagemagick xvfb ghostscript && \
   rm -rf /var/lib/apt/lists/*
 
 # trace java version
diff --git a/docker/Dockerfile.alpine b/docker/Dockerfile.alpine
index b6d7acede..7ed3e840c 100644
--- a/docker/Dockerfile.alpine
+++ b/docker/Dockerfile.alpine
@@ -1,13 +1,15 @@
 # Build a docker image from latest YaCy sources on Alpine Linux
 
-# Base image : latest stable official jdk image from Docker based on Alpine Linux
-FROM openjdk:alpine
+# Base image : latest stable official jdk 8 image from Docker based on Alpine Linux
+FROM openjdk:8-alpine
 
 # trace java version
 RUN java -version
 
 # Install needed packages not in base image
-RUN apk add --no-cache curl
+# (curl for sh scripts in /bin, and wkhtmltopdf,imagemagick,xvfb and ghostscript to enable PDF and image snapshot generation)
+RUN apk add --no-cache curl imagemagick xvfb ghostscript && \
+	apk add wkhtmltopdf --no-cache --repository https://dl-3.alpinelinux.org/alpine/edge/testing/
 
 # set current working dir
 WORKDIR /tmp
@@ -81,4 +83,4 @@ VOLUME ["/opt/yacy_search_server/DATA"]
 USER yacy
 
 # Start yacy as a foreground process (-f) to display console logs and to wait for yacy process
-CMD ["/bin/sh","/opt/yacy_search_server/startYACY.sh","-f"]
+CMD ["/bin/sh","/opt/yacy_search_server/startYACY.sh","-f"]
\ No newline at end of file
diff --git a/docker/Readme.md b/docker/Readme.md
index 88e906864..77ed1d899 100644
--- a/docker/Readme.md
+++ b/docker/Readme.md
@@ -27,11 +27,11 @@ To build the Alpine variant :
 
 `luccioman/yacy:latest`
 
-This image is based on latest stable official Debian [openjdk](https://hub.docker.com/_/openjdk/) image provided by Docker. Embed Yacy compiled from latest git repository sources.
+This image is based on latest stable official Debian stable [openjdk](https://hub.docker.com/_/openjdk/) 8 image provided by Docker. Embed Yacy compiled from latest git repository sources.
 
 `luccioman/yacy:latest-alpine`
 
-This image is based on latest stable official Alpine Linux [openjdk](https://hub.docker.com/_/openjdk/) image provided by Docker. Embed Yacy compiled from latest git repository sources.
+This image is based on latest stable official Alpine Linux [openjdk](https://hub.docker.com/_/openjdk/) 8 image provided by Docker. Embed Yacy compiled from latest git repository sources.
 	
 ## Default admin account