| Adobe Acrobat: The Killer App
 of Online Publishing
 by Mike Lee
  The advent of the World Wide Web was a landmark
      in the history of publishing, but the Web's basic components
      don't handle many of the subtleties of publishing very well.
      Many elements you may want to present online cannot be squeezed
      into the straitjacket of HTML, GIFs, and JPEGs. A Web "page"
      is not really equivalent to a printed page at all, and, at times,
      you may want a document on your site that actually prints the
      way it's supposed to. 
  That's the problem
      my colleagues and I faced when we designed our literary Web site
      in 1996. We wanted something better than pages you could only
      read on your computer monitor. We wanted publications you could
      actually print and take somewhere else, publications that looked
      and read as much as possible like actual booksfonts included. 
  Our solution? Adobe Acrobat,
      the Web's Best Kept Secret. We'll get to the details below, but
      here's a teaser: Acrobat packs everythingtext, fonts, and
      graphicsinto a single file. This file can be viewed on
      almost any personal computer or workstation. And it prints with
      such fidelity to the original that even the IRS uses Acrobat
      to distribute tax forms from its Web site.
 The "Paperless" Office
  You may have heard of Acrobat
      years ago, when Adobe marketed it as a kind of groupware producta
      way to let many people work on the same information while tracking
      changes by user. The original idea was that you could create
      a document on one computer, then annotate or print it on another.
      The same document could be passed around a company and viewed
      on any machine, regardless of operating system. 
  Unlike word processor files,
      Acrobat documents can travel easily from platform to platformfrom
      Macs to PCs to Unix and even OS/2with no translation, no
      compromises, no loss in quality. The fonts and graphics used
      to create the file are packed inside it. You don't need the program
      that originally created the file in order to view or print it. 
  It is, as they say, an elegant
      hack. But Acrobat found few early takers, and the product languished
      while the world moved on. Part of Adobe's problem was maturity:
      the program had to go through a revision or two to become elegant.
      Another problem was that with the first version, Adobe charged
      for every "seat" or user, even if the user was just
      viewing Acrobat documents. With the release of Acrobat 2, the
      Reader application became free, and was suddenly bundled on virtually
      every software CD-ROM. 
  This set the stage for that
      great migration to the Webwhere the need to do what Acrobat
      does became apparent.
 Outlines, Not Designs
  The Web wasn't intended for
      graphic designers. It was meant to present plain text in hierarchical
      fashion, like a formal outline, and to present clear links between
      text in different documentsa user-friendly version of Gopher,
      an earlier Internet technology. That's why the original suite
      of HTML codes indicated not fonts and layout, but textual qualities:
      Header 1, Header 2, Paragraph, and so on. Images, if they were
      presented at all, were strictly flush left (and, if you used
      the original NCSA Mosaic on a slow connection, took forever to
      download and display even then). 
  Imagine explaining to your
      grandchildren the revolution that Netscape 1.0 created: Centered
      graphics! It hasn't gotten much better. As visually sophisticated
      as some pages look these days, under the hood it's a scene from
      the film Brazil, with nested tables, single-pixel transparent
      GIFs, and all manner of arcane tricks designed to present something
      that approximates what you can do in five minutes with a conventional
      page-layout program. 
  And it still doesn't print
      very well. 
  So what does Acrobat offer
      that HTML lacks? One word: PostScript.
 Describing a Page
  Adobe's PostScript page description
      language is what computers use to talk to most laser printers
      and all imagesetters (very high-resolution output devices used
      for professional output). It's the heart of desktop and professional
      electronic publishing, and it set off a revolution when it was
      used in the first Apple LaserWriter and Aldus PageMaker 1.0 (long
      before Adobe bought Aldus). 
  The computer uses PostScript
      to describe a page in terms of all the elements that appear on
      it, including placement of graphics and spacing of fonts. Typically,
      whatever program you're using downloads to the printer any TrueType
      and PostScript fonts needs to print a given document. So whenever
      you print to a PostScript printer, your computer creates a file
      and downloads it to the printer, and then the printer interprets
      itthe result being your printed copy. 
  Acrobat sits between the computer
      and the printer. Rather than sending a PostScript file (which
      is just a plain text file) to the printer, you save it on your
      hard drive. This file is interpreted by Acrobat, just like a
      printer would interpret the PostScript file, and instead of printed
      output, you wind up with a Portable Document Format (PDF) file
      which is virtually identical to what the printed page would look
      like. 
  A PDF file is self-contained
      and highly compactcompression is built in for all elementsand
      can travel conveniently across computer platforms and across
      the Web. If you have the Acrobat Reader, mentioned earlier, that's
      all you need to view and print a PDF file. Look around your CD-ROMsit's
      likely that the Acrobat Reader shipped with some product you
      own, and Adobe includes it on every CD-ROM they produce. You
      can also download the latest version for free from the Adobe Web site, but it's anywhere from 5 MB
      to 7 MB in size, depending on which platform you choose. 
  The Acrobat PDF file can look
      as good as anything you can design in your layout program, because
      that's where you create it. Think of it: PageMaker or QuarkXPress
      on the Web! That's the promise that Acrobat offers and delivers.
      For myself and my designer colleagues, Acrobat is the killer
      app of online publishing.
 Production Cycles
  Let's walk through a typical
      production cycle, which, in our case, is presenting a short story
      on our Web site. Many of the steps are the same as conventional
      publishing: We edit the piece, commission an illustration, scan
      it into Photoshop if necessary, and create title graphics and
      typography in FreeHand. From there, our work branches in two
      parallel directions: separate versions in HTML and Acrobat, one
      to be read online, the other to be downloaded from our site and
      printed. 
  The Acrobat version is designed
      in PageMaker. To provide the appearance of a book, we have a
      basic two-column horizontal layout, similar to the effect of
      photocopying an open spread (or, for that matter, holding a book
      open in your lap). We fuss over the typographyfonts, sizes
      and leadingthe same as we would for conventional publishing.
      Finally, we import the cover illustration (TIFF or EPSno
      GIFs to sweat over) and fuss some more until we're satisfied. 
  We could, at this point, take
      the PageMaker file to a commercial printer. Instead, we turn
      it over to Acrobat.
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