NEW YORK CITY - A US judge Thursday threw out a long-running challenge to Google's massive book-scanning project in a decision that could transform copyright law in the digital age.
Federal Judge Denny Chin dismissed the case which dates back to 2005, saying Google's project is "fair use" under copyright law because it provides vital educational and other public benefits.
In a 28-page decision, Chin said the Google programme, dubbed the "Library Project," preserves books, gives "new life" to forgotten editions, sustains "print-disabled" users and benefit authors and publishers by finding them new readers.
"In my view, Google Books provides significant public benefits," Chin wrote. "Indeed, all society benefits."
The Authors Guild, one of the original plaintiffs in the case, vowed an appeal, saying the decision runs counter to copyright standards.
"This case presents a fundamental challenge to copyright that merits review by a higher court," said Authors Guild executive director Paul Aiken.
"Google made unauthorized digital editions of nearly all of the world's valuable copyright-protected literature and profits from displaying those works. In our view, such mass digitization and exploitation far exceeds the bounds of fair use defence."
Google hailed Thursday's ruling.
"This has been a long road and we are absolutely delighted with today's judgement," a Google spokesperson said.
"As we have long said Google Books is in compliance with copyright law and acts like a card catalog for the digital age giving users the ability to find books to buy or borrow."
The case centers on a Google programme started in 2004 to create an electronic database of books that could be searchable by keywords.
Google has scanned more than 20 million books so far in the project. Books in the public domain - without current copyrights - are made available online to the public for free. For copyrighted books, Google offers a searchable database that displays snippets of text.
Google argued that the Library Project creates new information and new insights. The programme "has been used to analyse the evolution of the American novel and how word usage reflects changes in American society and values," Google said in a legal brief.
But the Authors Guild, who were joined in the litigation by three authors, had argued Google violated the rights of authors by scanning works without obtaining approval from the authors.