diff --git a/docker/app/Dockerfile b/docker/app/Dockerfile
index 790f292..475afeb 100644
--- a/docker/app/Dockerfile
+++ b/docker/app/Dockerfile
@@ -13,7 +13,8 @@
 	smbclient libsmbclient-dev \
 	libbz2-dev \
 	libmagickcore-6.q16-6-extra \
-	ocrmypdf
+	ocrmypdf \
+	imagemagick ghostscript
 RUN apt-get clean && rm -rf /var/lib/apt/lists/*
 RUN	pecl install \
 	smbclient
@@ -22,5 +23,6 @@
 RUN docker-php-ext-install bz2
 RUN docker-php-ext-install bcmath
 RUN docker-php-ext-enable smbclient
+RUN sed -i '/domain="coder".*pattern="PDF"/c\<policy domain="coder" rights="read\|write" pattern="PDF" \/>' /etc/ImageMagick-6/policy.xml
 
 COPY redis.config.php /usr/src/nextcloud/config/redis.config.php