Invalid Bibtex records / DOI not extracted from imported PDF files

[avm19]

Observed behaviour:
Some PDF files are imported as invalid Bibtex records of type @Misc with empty Bibtexkey and with only one field file. I suppose, this is caused the failure to extract DOI from the first page of a PDF file. (JabRef docs say "In case a DOI is found on the first page, the DOI is used to generate the BibTeX information")

Expected behaviour:
JabRef extracts DOI from the PDF and retrieves the necessary information from the internet.

Steps to reproduce the observed behavior:

1. Download the pdf file
2. In JabRef: Lookup -> Search for unlinked local files; scan the directory with the file, select the file, proceed to Import.
3. Observe a new record in the database, which looks as follows:
   

JabRef version
JabRef 5.1--2020-06-02--46fd96b
Windows 10 10.0 amd64
Java 14.0.1

• Mandatory: I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

[Siedlerchr]

Thanks for reporting that issue. JabRef first checks for XMP metadata to be present and then tries the "magic" PDF extraction. However, the XMP parser did not correctly indicate that the entry is empty (contains no fields) and therefore the PDF extractor was not called.

This should now be fixed in the latest master (currently building, ready in ~30min)

[Siedlerchr]

In addition, the docs are a bit outdated. Feel free to edit them! Just click on "Edit at github"