Dan Margulis 被譽為“數碼印前技術之父”。2001年，他就成為Photoshop Hall of Fame(Photoshop名人館)首批成員之一（他是其中惟一的作傢）。在宣布他當選時，美國Photoshop國傢專業協會在頒奬詞中說：“Dan能夠將復雜的概念簡單化為用戶可以理解的語言，他處理實際問題的主張已經使他成為當今顔色再現領域最有影響的人物。”

The commonsense, by-the-numbers approach of Professional Photoshop has shaped the workflows of a generation of Photoshop experts. This new edition, the first in nearly five years, is completely updated for the age of digital photography. It continues the book's tradition of introducing astoundingly effective, previously unknown methods of image enhancement. The original photographs found in the book come from a variety of professional sources, and all correction exercises are on the included CD. Professional Photoshop has changed radically from edition to edition, and this time is no exception--with almost 90 percent new content and completely overhauled coverage of curves, channel blending, and sharpening.Professional Photoshop offers a full explanation of: * How curves bring out detail in the most important areas of the imagen * A comprehensive strategy for blending channels to create deeper, stronger images * The strengths and weaknesses of CMYK, LAB, and RGB, and when to use each one * The first detailed look at the Shadow/Highlight command--and even more sophis-ticated ways to enhance contrast in the lightest and darkest parts of the imagen * Sharpening strategies, in three full chapters, including the innovative hiraloam method (High Radius, Low Amount). Plus, a fiendishly effective method of merging hiraloam and conventional unsharp masking * The realities--and the politics--of preparing files for commercial offset printing and how to deal with colors that are out of the press's gamut * What Camera Raw and similar acquisition modules can offer * Typical problems of digital captures that were not found in the age of film-- and how to correct for them