Our current solution is a bit of a workaround but seems to work perfectly:
We allready had an SFTP connection setup for another application, so now whenever a person signs in i create a PDF file and store it in a certain folder in the SFTP. Then on the SFTP server runs a script that checks every 5 seconds if there is a pdf file and prints + deletes it. It's not pretty but it works just fine
Niels,
I haven't done this before, but it seems to me that using something like this Google Cloud Print should be pretty straightforward. There is even a link on that page to development resources to integrate Cloud Print with your applications. There are, I am sure, many other options besides Cloud Print. If you try this, put a follow up posting here to let everyone know how it works out.
Have fun,
Mike