ALTO Technical Metadata for Optical Character Recognition (OCR)

News Subscribe to ALTO news feed

Schema

Listserv



Documents using the PDF format can be read using free software like Adobe Acrobat Reader. External link: http://www.adobe.com/products/reader/

Get Acrobat Reader


ALTO (Analyzed Layout and Text Object) is a XML Schema that details technical metadata for describing the layout and content of physical text resources, such as pages of a book or a newspaper. It most commonly serves as an extension schema used within the Metadata Encoding and Transmission Schema (METS) administrative metadata section. However, ALTO instances can also exist as a standalone document used independently of METS.

Disclaimer