Overall picture of digitization and textization of the National Diet Library (2024)
In recent years, the National Diet Library (NDL) has been engaged in the large-scale digitization of Japanese publications and the creation of their text data. The current goal is to complete the digitization of books published in Japan in 2000 or earlier as soon as possible. 3.9 million materials including books, journals and doctoral theses have been digitized already, some of which are available on the internet. Detailed searches of these materials require text data.
The 2018 amendment to the Copyright Act allows text data on digitized materials to be created and used for searching without the permission of the copyright holder. In response, the National Diet Library has created text data for 2.57 million digitized materials and is using it for full-text search services of digitized materials in the National Diet Library Digital Collections. In addition, the National Diet Library Material Search for Persons with Disabilities (Mina Search) allows those who are blind, visually impaired, dyslexic, or otherwise print disabled to download text data themselves or through libraries. The text data of newly digitized materials will continue to be produced.