ALTO schema version 3.1 available for public use

Impact CoCNews

The ALTO XML Editorial Board is pleased to announce that the ALTO schema version 3.1 is now available for public use. The schema can be found on the website of the The Library of Congress at and on Github at

Summary of changes from ALTO draft schema version 3.1:

Added support for using different shapes for the elements String, TextLine, all PageSpaceType elements and on all BlockType elements.
The description of the attribute ROTATION is changed to the rotation of the contents of a block and not the block itself. The attribute is inherited by all sub elements.

Documentation about the changes and use cases can be foud on Github at

Comments about the schema and its documentation as well as additional use cases for the new schema features are encouraged.

The ALTO Editorial Board
Joachim Bauer
Raju Buddharaju
Brian Geiger
Kia Siang Hock
Jukka Kervinen
Evelien Ket
Jean-Philippe Moreux
Clemens Neudecker
Stefan Pletschacher
Nate Trail
Eric Weig
Frederick Zarndt