PDFs Duplicated?
Does Zotero create a copy of every PDF indexed and place that copy in the data directory? If so, is it possible to have Zotero only index? I have GBs worth of pdfs and duplicating them would kill my hd space.
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If you want to use linked files, you can use "Link to File…" from the New Item (plus sign) menu for files already on your computer and set up the third-party ZotFile plugin as mentioned in the documentation I linked to above for new downloads, but that's a more advanced workflow. The ZotFile site provides documentation on its use.