Force PDF download instead of browser open

I haven't seen any configuration option on the REST end point.

Anyway loading a LiveCycle REST end point as a web page directly into a HTML browser is not a common real life scenario, is it?

A typical architecture would include a web application and the REST end point would be invoked through a servlet, or maybe through a URL reference in another web page.

Hmmm... I am invoking the process through a REST interface. I guess there is no way to set the HTTP header just straight from within Workbench for that REST service?

You can do that by adding a http header in the response, for instance in a servlet you would add:

response.addHeader("content-disposition", "attachment; filename=" + myFileName + ".pdf")

Hmm.. I have the impression I need to do something more thank just that. Indeed I got the popup to work by changing the MIME type, but that also removed the .pdf extension for some reason. I'f I keep using PDF the browser just always opens it, whilst that same browser on many other sites forces the download dialog when opening PDFs.

More hints are welcomed

I believe that this is actually caused by the broswer.  The service sends a file to the client (a browser in this case) of type "application/pdf".  The browser then says: "Hey, I know what to do with that.  I'll open Reader/Acrobat".  This is because of the association made in the browser with application/pdf files and Reader/Acrobat.

If on the other hand, you change the content type in the resulting document object (say using a setValue in a LC process) to something like "mysterious/unknown" then the browser sees the file it can't make an association.  That should trigger a download dialog.