Metadata is the structured information that describes a file: its title, authors, publication, DOI, and more. Think of it as the label on a file drawer. The richer the label, the easier it is to find, filter, and cite the file later.

Anara extracts most metadata automatically when you import a file. You can also add your own labels through tags.

When you upload or import a file, Anara extracts the following fields automatically where available:

Metadata extraction is most complete for papers imported via DOI or PMID, since those resolve against academic databases. Files uploaded from disk extract what they can from the document itself.

Tags are the primary metadata you control yourself. They let you categorize files with labels that reflect your workflow, such as topic area, methodology, or review status. See Using tags to categorize your files.

Open any file and click the Details tab in the viewer sidebar. All metadata for that file appears here, along with the AI-generated summary and abstract.

If extracted metadata is wrong or missing, you can correct it directly:

You can also edit the title directly by clicking it in the library table.

Every metadata field is searchable and filterable from the library toolbar. Accurate author names and DOIs mean you can filter your library by author or look up a paper by identifier in seconds.

See Filtering, sorting, and searching your library for the full list of filterable fields.