Bitstream Awarded Two Patents for Mobile Browsing Technology

CAMBRIDGE, MA — August 9, 2007 — Bitstream Inc. (NASDAQ: BITS, www.bitstream.com) today announced that the U.S. Patent and Trademark Office has awarded the company two patents for its technology that enables browsing on mobile devices. This technology is the foundation of the company’s ThunderHawk™ product. ThunderHawk is the first browser to provide a consistent, full HTML browsing experience between mobile and desktop environments.

The first patent relates to technology that supports a better browsing experience on small screen devices.  Included in this patent is technology that enables browsing of the combined overview view of a Web page and a magnified view.  In addition, the patent covers technology that gives users the ability to show various views of Web pages, including overview only, magnified only, and a re-flown single column text view.  The use of a magnifier floating over the overview area is also included in this patent.  This unique “Zoom In/Zoom Out” split screen magnifier enables users to quickly find information and navigate Websites.

The second patent issues relates to displaying Web pages at different scale factors with optimized fonts to improve readability. Also patented is the concept of varying the font sizes differently than the scale factor so that content will flow differently at different scale factors.

Both patents include operating in a client/server environment.

Commenting on the patents, Anna Chagnon, President and Chief Executive Officer of Bitstream, Inc. said, “These patents enable us to maintain our competitive advantage by protecting the key features of the ThunderHawk user experience. ThunderHawk is the only browser that satisfies the key requirements for a positive user experience: the ability to find and read information quickly – all in HTML format. These patents ensure that we continue to offer users the best browsing experience in the industry.”