DocumentConverter Quickinstall Guide / Cheatsheet


This document aims to be a condensed "HOWTO" like installation walkthrough.

The other relevant documentation is to be considered as a reference.

This document describes the fully clustered setup. Simpler setups can be deduced as special case.

This document has been created and verified on CentOS7 and OX App Suite 7.8.4.

Design description

We consider a clustered setup with multiple middleware nodes and multiple converter nodes.

Software installation and configuration

Middleware nodes

Prerequisites: Drive is installed and working. We need Drive to upload test documents and verify their conversion. This also assumes (since we a discussing a clustered setup) a clustered filestore is available and working. If you are only going for a single node proof-of-concept setup, that is not relevant of course.

Packages to be installed:

open-xchange-documentconverter-api open-xchange-documentconverter-client


# assume a global switch on for testing. further config cascade stuff etc is out of scope
# of this document.
# this needs to be adjusted. will be discussed below.

Frontend nodes


Converter nodes

Packages to be installed:

open-xchange-documentconverter-server open-xchange-documentconverter-api readerengine

(Note: the official documentation also mentions "pdf2svg" which at least on CentOS7 does not exist, but rather a package named "readerengine-pdf2svg" is pulled as dependency. So for the moment let's assume we don't need to install that explicitly, but if you are following this guide on Debian you should double-check.)


# Pick a unique route, which will be configured consistently in apache
# Clustered setups need to listen not only on localhost
# TODO figure out the recommended Cache setup for a clustered scenario
com.openexchange.documentconverter.RemoteCacheUrls = ?
# Default is 3. Adjust for your sizing.

Services configuration:

systemctl start open-xchange-documentconverter-server
systemctl enable open-xchange-documentconverter-server

Configure the middleware to converter connectivity

So that was the trivial part. Now it gets interesting.

First test: direct connectivity

Pick a middleware node. Configure direct connection to one converter service which is called dc1. By default the service listens on port 8008 and listens on the path /documentconverterws.

# curl http://dc1:8008/documentconverterws/
<head><meta charset="UTF-8"><title>Open-Xchange DC</title></head>
<body><h1 align="center">OX Software GmbH DC</h1>
<p>WebService is running...</p>
<p>Error Code: 0</p>
<p>API: v5</p></body>

That's how it should look like. HTTP status code 200 (not shown for clarity, but you can verify with curl -v, "WebService is running...", "Error Code: 0".

If that is successful, go ahead and configure that URL in the middleware node
# this needs to be adjusted. will be discussed below.

Do a testing cycle as described below.


If you reconfigured something on the middleware node(s), restart the service there.

service open-xchange restart

Wipe out caches on the converter node(s) and restart the service there:

service open-xchange-documentconverter-server stop
rm -rf /var/spool/open-xchange/documentconverter/readerengine.*/*
service open-xchange-documentconverter-server start

(Careful about your paths and when copy-pasting; I don't take responsibility of you remove something wrong.)

If your testuser is logged in from a previous test, log out.

Login your testuser.

Access Drive. Upload test documents if not done before. Preferably some small trivial docs, also some large multi-page docs with embedded diagrams etc.

Switch to "icons" or "tiles" view. You should get nice preview thumbnails for each document. (This is only a relevant test for the first time since the previews are stored in the database. TODO: find out how to wipe / re-test that.)

Click the "eye" icon to start the Document Viewer. You should be able to view documents with reasonable speed. Scrolling through the pages should be possible and fast.

Click the "pop out" icon to the top right to use pop-out view. Verify all pages are rendered correctly in the full-page view and in the thumbnail previews.