How to Fetch and Edit PDF Metadata on Mac

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PDF files can contain metadata like title, author and publication. Highlights uses this information to generate the header at the top of your notes. If the metadata is incomplete and the PDF contains an identifier link, Highlights will ask you permission to download the full metadata:

Highlights window prompting to download metadata for PDF document

If allowed, Highlights will fetch the metadata and embed it in the header:

Highlights note header displaying downloaded metadata

Click on the Metadata-button in the toolbar to inspect the PDF metadata:

Highlights toolbar cutout with metadata button highlighted

This bring up the metadata popover where you can see and edit the PDF metadata fields:

Highlights popover for editing PDF metadata

If the download failed or the information was incorrect, you can edit it here or download metadata manually by entering a DOI-link in the Link-field and clicking Download Metadata.