I’m admitting defeat on this one. I can clip Web pages as PDF straight to DT3, unless I have the clutter free option checked, then I get a“ connection not secure ” warning and no PDF. I have tried with numerous sites, all have correct SSL certs.
However, I have have tried numerous sites. The only sites I clip from are academic journals that only provide html articles, and don’t generate their own PDFs.
I have tried clipping from both Firefox and Safari. Using the browser extension , I select format ‘pdf’ and check the ‘clutter-free’ option. Note, without clutter-free checked there is no problem.
I’ve worked out it is to do with my network. I use a Synology RT2600ac router, which has a fierwall using the Google Safe Browsing database. I disabled the firewall, and the problem goes away. As to why the marky service IP was getting caught, I couldn’t say. But I can add an exception and it works fine.