Zotero will try to automatically download the PDF if you save from the publisher page via the Zotero Connector's "Save to Zotero" button, and it will also check for open-access versions of the PDF if that fails. It will also check for OA copies and check the publisher site if you use Find Available PDF on an item after the fact or if you save via Add Item by Identifier.
Adding via "Add Item by Identifier" should trigger the same PDF-finding process as "Find Available PDF", and if it's OA a proxy shouldn't matter (but note that, as explained in that blog post, the only sort of proxy that would matter here would be a system-level proxy or VPN connection, not a web-based proxy that you use in your browser with the Zotero Connector).
Oh, you're saying it's getting the OA copy rather than the publisher copy?
Do you have direct (IP- or VPN-based) access to the PDF on the ACS site? Or do you need to be connected through a web-based proxy to access it? Only the former will work for Add Item by Identifier and Find Available PDF. But if you just save from the publisher site, it should download the PDF as long as you have access to it in your browser.
Just to clarify, "proxy-based" is a little ambiguous. A system-wide proxy setup (even limited to specific domains) would count as IP-based. But a web-based proxy would not, because that's just changing the domains that you're actually connecting to in your browser (e.g., pubs-acs-org.ezproxy.school.edu) and wouldn't affect other programs like Zotero on the system.
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Zotero will try to automatically download the PDF if you save from the publisher page via the Zotero Connector's "Save to Zotero" button, and it will also check for open-access versions of the PDF if that fails. It will also check for OA copies and check the publisher site if you use Find Available PDF on an item after the fact or if you save via Add Item by Identifier.
When I mannually add doi and then use "Find Available PDF", it gets the OA copies. Maybe I did not set up the proxy properly?
Adding via "Add Item by Identifier" should trigger the same PDF-finding process as "Find Available PDF", and if it's OA a proxy shouldn't matter (but note that, as explained in that blog post, the only sort of proxy that would matter here would be a system-level proxy or VPN connection, not a web-based proxy that you use in your browser with the Zotero Connector).
it always downloads the PMC copy.
thanks!
Do you have direct (IP- or VPN-based) access to the PDF on the ACS site? Or do you need to be connected through a web-based proxy to access it? Only the former will work for Add Item by Identifier and Find Available PDF. But if you just save from the publisher site, it should download the PDF as long as you have access to it in your browser.