May 22, 2007 -- Gent, Belgium - Artwork Systems Group N.V., a world leader in professional pre-press software, is investigating claims made by Markzware in a lawsuit filed in the federal district court in Santa Ana, California, that Enfocus products allegedly infringe Markzware's U.S. patent. The lawsuit, which focuses on two Enfocus software products -- PitStop Professional and PitStop Server -- comes as a surprise to Enfocus, whose leading PDF preflighting products have been on the U.S. market for many years. Said Artwork Systems Group CEO, Peter Denoo, "Artwork Systems and Enfocus respect the intellectual property rights of third parties, and are currently conducting a full investigation into what appear to be unsupportable allegations made by Markzware. We do not expect this lawsuit to interfere in any way with Enfocus' ability to continue offering and supporting its popular PDF preflighting products, now or in the future."