He is the author of Digital Type Design Guide , and is working on a new edition to be published next year. Sean has written feature articles for IdN Magazine and is the co-author of Photoshop Tech Support . When not writing or designing, Sean likes to work on his home in San Diego and travel on his motorcycle. He is more or less a typical INTP .
Surface ships use sonar to locate and track submarines.
For the past several weeks I've been cruising the high seas of the web pinging for PNG files, and I'm beginning to think I'll have better luck locating Red October. PNG stands for Portable Network Graphic format, and is pronounced as submariners would say it - ping. If you use popular graphics editing tools such as Adobe Photoshop, you've probably seen the format listed as an option when you save files, but chances are you haven't paid much attention to it. The focus of this article is whether you should. With so many graphic file formats out there, you might wonder why we need another one.