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Book Metadata Extractor
Upload a PDF or EPUB and get its core metadata normalised to the ONIX 3 standard — title, contributors, publisher, ISBN, BISAC and Thema subjects, and retail keywords.
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ONIX 3 normalised
Fields map to the ONIX for Books 3 standard maintained by EDItEUR: title, contributors with List 17 role codes, publisher, publishing dates, identifiers, and more.
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BISAC and Thema classification
Get suggested BISAC Subject Headings and Thema categories, plus retail search keywords in the language of the book.
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Smart page sampling
We analyse the first and last pages, where the title, copyright and colophon sit, plus a few from the middle. It is quick and private, and the results are accurate.
What the Book Metadata Extractor does
Good metadata is what makes a book findable and sellable — and it is tedious to assemble by hand. Upload a PDF or EPUB and this free metadata extractor reads the file, samples the pages where bibliographic data lives (title page, copyright page, colophon), and returns clean metadata normalised to the ONIX for Books 3 standard: title and subtitle, contributors with role codes, publisher, dates, identifiers, language, BISAC and Thema subjects, and retail keywords.
Where the file already carries embedded metadata, that always wins; the AI fills the gaps and suggests classification and keywords in the language of the book. You get a structured record you can drop straight into a catalogue, plus a copy sent to your inbox.
It is free and private, one book at a time. Only sampled excerpts are analysed, and your file is deleted immediately after.
When to use it
- Building a catalogue record from a manuscript or finished file.
- Filling in missing BISAC / Thema subjects and retail keywords.
- Standardising contributor roles to ONIX List 17 codes.
- Spot-checking the metadata embedded in a file you received.
Fields are normalised to the ONIX for Books 3 standard maintained by EDItEUR. BISAC is a trademark of BISG; Thema is maintained by EDItEUR. Extraction is AI-assisted — always verify against the printed copyright page.
Do this for your whole catalogue in Origami
Metadata, EPUB and accessibility checks, descriptions and more, all in one place and not just once. Origami is where these tools live for your entire list.
