autocomplete paper vs autofill from internet > different sources?

[Reinhard]

I imported an old Nature pdf
Doolittle, WF. 1978. “Genes in Pieces: Were They Ever Together.” Nature 272 (5654): 581–82, doi:10.1038/272581a0.

The pdf contains just images no text and consequently Bookends could not find the metadata. I looked up the doi on the Nature website and entered it into the doi-field of autocomplete paper. No luck!
Yet, when I did a "autofill from internet" the metadata import worked.
Do both features look up the data in different sources? Shouldn't the result be the same?

Thanks

[Jon]

It depends on what online repository you used in Autocomplete Paper. PubMed or CrossRef would no doubt work. If they didn't, this is a tech support issue, not one for the forum.

Jon
Sonny Software

[Reinhard]

Thanks, your answer is already very helpful.
I did not know that a click on the PubMed logo on the lower right corner of the autocomplete-paper-window opens a dialogue, where I can choose the source.
Yet, autofill-from-internet seems to use them all, at once.