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PDFpen adds continuous scrolling page view - Macworld
http://news.google.com/news/url?sa=T&ct=us/0-0&fd=R&url=http://www.macworld.com/article/139187/2009/03/pdfpen.html&cid=1311112489&ei=yIavSbSdDaXWMIqi4OsD&usg=AFQjCNGEDTYjpqHO5H1nlNNqpTXc0ZgKRA