Note: This is a *relational* link – if you change the file structure in any way, the link between the saved file in Dropbox/GDrive/etc.Now any PDF files you download as attachments to a Zotero record will be automatically saved in this synced folder, which will store the files online in your cloud storage app.Here you will change your Zotero file storage Base Directory by using the Choose… option to go to the folder you just set up. In Zotero, go to Zotero Preferences -> Advanced -> Files and Folders.Make sure it is properly synced with Dropbox/GDrive/etc. Create a folder in your computer’s Dropbox/GDrive/OneDrive drive to store your Zotero PDFs, i.e.Do NOT store your entire Zotero directory on cloud storage - that will corrupt your files and make a big mess. Also, note that this is all about saving attachment files to cloud storage and establishing links to your Zotero record.

That said, if you really want to use your own cloud storage, this is one way to do this, but you can also use the ZotFile application for PDFs, or save PDF or other files to cloud services individually.

Note: I actually highly recommend using Zotero's own storage (I pay $20/year for 2 gigs which isn't much money - it simplifies things considerably and also helps support Zotero).

Dropbox help keeps opening