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Joachim Bauer edited this page Jun 17, 2016 · 21 revisions

ALTOxml Documentation

ALTO (Analyzed Layout and Text Object)

is an 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 with the Metadata Encoding and Transmission Schema (METS) Schema. However, ALTO instances can also exist as a standalone document used independently of METS.


  • Latest version and overview of all former versions

ALTO documentation

  • Technical documentation, guidance and best practises

Reference samples

  • ALTO XML files with corresponding image files


  • Software for creating, presenting and editing ALTO files


  • List of organisations using ALTO in digitised content
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