Save to zotero seem not always to understand what to save
Go to this http://ncm.gu.se/pdf/nomadopen/15_2_029048_kvaernes.pdf in firefox it will show as a preview pdf. But Zotero believes it is a webpage, so zotero believes it should save as a webpage instead to save as a pdf to fetch metainformation etc.
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What I can see is that for some places like the one I mentioned then sometimes Zotero select to save like a webpage with snapshot instead of as pdf. I just has the same with Springer.
And it is not consistent. Sometimes it happens, while other times it does not. I have made a 2 minutes video that shows how it can be different if you are interested.
1. Open the Zotero Connector preferences
2. In the Advanced tab of the Zotero Connector preferences, check the box next to “Enable Logging.” Do not close this tab.
3. In a new tab navigate to "http://ncm.gu.se/pdf/nomadopen/15_2_029048_kvaernes.pdf" and wait for it to fully load
4. Go back to the Advanced tab of the Zotero Connector preferences, uncheck "Enable Logging" and click Submit to Zotero Server.
5. You will be provided with a Debug ID (e.g., “D12345678”). Please post the Debug ID in this thread.