I am pretty frustrated right now so apologies in advance if this is a bit snarky but I honestly feel that this is just silly.
so I registered my Lightroom license after I found my old CD and thought "well, this might come in handy". Lo and behold it did because somehow, the new lightroom doesn't allow you to set DPI as expot setting and at full JPG size it is limited at 240? I mean, I pay 150 euros/a year for professional photo editing software and I cannot even select 300 dpi as export setting? So anyhow, then I decided that I would need to revert to my old version of lightroom to perform a basic function. It is registered as such:
This is a user to user community. For some issues it will be necessary to contact Adobe directly. Click the following link and scroll down the page to Individual. Then click “Sign in to contact us” It should be possible to start an on-line chat with Adobe Support. Make it clear you are not looking for support for an older product but need a download link to re-install.