diff --git a/README.md b/README.md
index 9a59aa5..5d5ae46 100644
--- a/README.md
+++ b/README.md
@@ -13,8 +13,13 @@ Strings surrounded with quotation marks
 
 The [marp-cli](https://github.com/marp-team/marp-cli) can be used to convert the md to pdf:
  - Stand alone linux package https://github.com/marp-team/marp-cli/releases
+    - run as server with PORT=5000 marp -s ./slides
+    - requires wget for download
+    - requires chrome to convert to pdf
  - docker container https://hub.docker.com/r/marpteam/marp-cli/
 `docker run --rm --init -v $PWD:/home/marp/app/ -e LANG=$LANG marpteam/marp-cli slide-deck.md --pdf`
+ - Run marp cli in its own docker container in server mode!!!
+    - output folder as volumne, so that marp container can assess it
 
 powerpoint export is also possible with --pptx
 
@@ -32,5 +37,42 @@ https://pythonise.com/series/learning-flask/flask-uploading-files
 python docker wait for container
 
 
+CLI binary:
+
+convert file
+./marp --pdf ./slides/slide-deck.md 
+./marp --pdf ./slides/slide-deck.md 
+/opt/marp --pdf /code/csv-to-marp-converter/
+
+start server
+./marp --pdf --server ./slides/
+PORT=4100 /opt/marp-cli --server ./
 
 
+use marp server:
+ - link or embed marp server path (http://localhost:8080/) from result html
+ - Dockerfile
+    - download latest marp binary
+    - start server (on correct port)
+
+wget -O marp-cli.tar.gz https://github.com/marp-team/marp-cli/releases/download/v1.1.1/marp-cli-v1.1.1-linux.tar.gz 
+
+
+when running release version from 
+
+[  WARN ] The environment variable CHROME_PATH must be set to executable of a build of Chromium version 54.0 or later.
+[ ERROR ] Failed converting Markdown. (You have to install Google Chrome, Chromium, or Microsoft Edge to convert slide deck with current options.)
+
+
+when running cli with docker
+docker run -v $PWD:/home/marp/app/ -e LANG=$LANG marpteam/marp-cli quiz-slides-template.md --pdf
+
+[ ERROR ] Failed converting Markdown. (EACCES: permission denied, open
+          '/home/marp/app/quiz-slides-template.pdf')
+
+chmod -R 0777 output/
+
+docker run -v $PWD:/home/marp/app/ -e LANG=$LANG -e PORT=4100 -p 4100:4100 marpteam/marp-cli --server  ./ -d
+
+docker run -d -v /home/marcelo/git/docker-python-multi-service/csv-to-marp-converter/output:/home/marp/app/ -e LANG=$LANG -e PORT=4100 -p 4100:4100 marpteam/marp-cli --server  ./
+
diff --git a/rest_server.py b/rest_server.py
index ff6cf1e..4e018c4 100644
--- a/rest_server.py
+++ b/rest_server.py
@@ -64,7 +64,10 @@ def upload_image():
             csv_file.save(output_file_path)
 
             # run converter
-            converter.convert(output_file_path, True)
+            if config_parser.prod_mode:
+                converter.convert(output_file_path, False)
+            else:
+                converter.convert(output_file_path, True)
 
             return render_template("return_result.html")
             # return redirect(request.url)