diff --git a/docker/Dockerfile.alpine b/docker/Dockerfile.alpine
index 97a590f42..6ce53849e 100644
--- a/docker/Dockerfile.alpine
+++ b/docker/Dockerfile.alpine
@@ -7,15 +7,45 @@ FROM openjdk:8-alpine
 RUN java -version
 
 # 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 apk add --no-cache curl imagemagick xvfb ghostscript && \
-	apk add wkhtmltopdf --no-cache --repository https://uk.alpinelinux.org/alpine/edge/community/
+# (curl for sh scripts in /bin, and imagemagick,xvfb and ghostscript to enable PDF and image snapshot generation)
+RUN apk add --no-cache curl imagemagick xvfb ghostscript
+
+# --- Begin of wkhtmltopdf install : compile from sources because the wkhtmltopdf Alpine package is currently only on the Alpine edge branch
 
 # set current working dir
 WORKDIR /tmp
 
+# set wkhtmltopdf version once in a environment variable
+ENV WKHTMLTOPDF_VERSION 0.12.5
+
+# Download and extract wkhtmltopdf sources
+RUN curl -fSL https://github.com/wkhtmltopdf/wkhtmltopdf/archive/${WKHTMLTOPDF_VERSION}.tar.gz -o wkhtmltopdf-${WKHTMLTOPDF_VERSION}-src.tar.gz && \
+	tar xzf wkhtmltopdf-${WKHTMLTOPDF_VERSION}-src.tar.gz
+
+# set current working dir
+WORKDIR wkhtmltopdf-${WKHTMLTOPDF_VERSION}
+
+# All in one step to reduce image size growth :
+# - add packages necessary to build wkhtmltopdf from sources and then to run it
+# - build wkhtmltopdf
+# - create a symbolic link to the wkhtmltopdf executable at a path where YaCy is expecting it
+# - remove the sources archive
+# - remove the build packages
+RUN apk update && \
+	apk add --no-cache g++ make qt5-qtbase-dev qt5-qtwebkit-dev qt5-qtsvg-dev qt5-qtxmlpatterns-dev libgcc libstdc++ musl qt5-qtbase qt5-qtbase-x11 qt5-qtsvg qt5-qtwebkit && \
+	qmake-qt5 -makefile && \
+	make && \
+	make install && \
+	rm -f /tmp/wkhtmltopdf-${WKHTMLTOPDF_VERSION}-src.tar.gz && \
+	apk del g++ make qt5-qtbase-dev qt5-qtwebkit-dev qt5-qtsvg-dev qt5-qtxmlpatterns-dev
+
+# --- End of wkhtmltopdf install
+
 # --- Begin of apache ant install : from binary distribution because ant is not in alpine packages
 
+# set current working dir
+WORKDIR /tmp
+
 # set ant version once in a environment variable
 ENV ANT_VERSION 1.10.5