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Postscript Type 1: High-End

PostScript fonts remain the preferred font format for high-resolution commercial print output. Why? The vast majority of print high-resolution output devices relies on PostScript raster image processors (RIPs), and has for the last 20 years. Add to it the fact that you can embed any PostScript font in a PDF, and you get an established workflow with consistent quality and predictable results.

TrueType: It's Everywhere

While TrueType is a popular font format for both Windows and Macintosh, it can be unpredictable when used for output to older PostScript Level 1 or 2 imaging systems at higher resolutions. With modern output devices, however, it is hardly ever a problem to rely on TrueType fonts.

Datafork: New for OS X, But Is It Improved?

Macintosh OS X comes with a new file format called a Datafork font; it has the .dfont extension. This is a version of Mac TrueType that has the data and resource forks combined into a new file format. Mac OS X, like Windows, uses extensions to define the file type, eliminating the Mac OS 9 Resource Fork file component, and making Mac OS X files compatible with other OS file systems. If you want to use TrueType, just find Windows .ttf fonts; they work on OS X! Use Apple's DataFork fonts just for OS X display, not print documents.

OpenType: Big Bang, But Worth The Buck?

OpenType, jointly developed by Microsoft and Adobe, is a cross-platform font file format with some great functionality. There are two main benefits of OpenType. First, this font file format offers cross-platform compatibility (the same font files can be installed on Mac OS 9, OS X and Microsoft Windows). That's great when your print service provider could be working on a different platform than your graphic designer.

Second, each OpenType font supports a significant expansion in built-in character sets and attributes — as long as you are using one of the few applications (mostly from Adobe) that support these extended sets. One OpenType font can support fractions, ligatures, ordinals, old-style and dingbat-style characters. These character alternatives are accessed via a fly-out menu from the character palette of your Adobe applications.

The OpenType format supports both TrueType and PostScript font data structures, and can be installed along with PostScript Type 1 and TrueType fonts.

Adobe has long discontinued use of Multiple Master fonts in favor of OpenType. Please try to avoid .mm or.mmm fonts as they can cause layout changes during output and characters in a given font may not always be available in the Multiple Master substitute. No one wants unpredictability when it comes to prepress and printing!

fonts files extensions
Mac Type 1 fonts have two components: the screen font, which is also known as the bitmap font, and the printer font, also known as the outline font. A font suitcase is a special type of folder that can hold multiple screen fonts, but the corresponding printer fonts are always individual files. Font suitcase icons in OS 9 look like a suitcase; in OS X, they have an icon with "FFIL" on them. Outline fonts, also known as printer fonts, carry the font foundry's icon. Both OS X and OS 9/Classic require you to keep a font's screen and printer font pairs in the same folder.
Windows PostScript fonts have a .pfb extension. Unlike the Mac, Windows PostScript fonts have both the display and printer font information in this one file. This is the only major PC font format that cannot be used with Mac OS X.
Microsoft and Adobe jointly developed OpenType to provide a single, cross-platform font format that is flexible enough to meet a variety of needs. OpenType supports font data in both the PostScript and the TrueType format. An OpenType font containing PostScript font data has an .otf extension and works on both the Windows and Mac platforms. Great in theory, but we've experienced problems with .otf fonts when used with Quark 6.x for Mac. The type disappears when the Quark file is converted to PDF. Beware.
An OpenType font with embedded TrueType font data has a .ttf extension, the same as a Windows TrueType font.
Mac TrueType fonts are packaged in suitcases, like the screen font component of a Mac PostScript Type 1 font. Unlike Type 1 fonts, the outline fonts are part of that single font file. Both PostScript suitcase and Mac TrueType suitcase files display the same FFIL icon in Mac OS X, making it difficult to distinguish one from another.
Though Apple invented TrueType, it was Microsoft that made it the most popular font format. With OS X, you can now install Windows TrueType fonts on a Mac, giving Mac users access to thousands of free or low cost .ttf fonts. Beware of quality issues with free fonts, especially kerning and ability to print. If you use .ttf fonts in your document, make sure you can print the file to a desktop printer and/or convert it to a PDF. If it won't print on your laser or ink jet printer, chances are it won't print to our platesetter. Finally, while TrueType fonts from major font foundries should be "embeddable" in a PDF, obscure TrueType fonts may carry a "Do Not Embed" restriction. This is a restriction that is set by the designer of the typeface and will result in font substitution if you try to embed such a font into a PDF document. If you use Adobe Distiller, it will warn you if embedding is not allowed.
Apple introduced a new variant of TrueType with OS X. It has an extension of .dfont and is the format used for most pre-installed system fonts. You should avoid using this format in your print layouts; be especially carefully with the dfont version of Helvetica Neue, which comes installed with OS X. Use the PostScript or TrueType version of Helvetica Neue if you can.
Metrics files provide tables of character widths, kerning pairs, and lots of other measurements. This information is embedded into the font files as well, so you only need the metrics files if you are a type designer or plan to convert fonts from one operating system to another. If you do keep them, keep them separate from your fonts.

tips and tools

Fix Fonts & More with Font Doctor
Organize, Remove Duplicates and Troubleshoot
[www.morrisonsoftdesign.com] Font files have a way of multiplying: Old font CDs throughout the client files, purchased downloads stored on random office machines, fonts collected for output lurking like the ghost of projects past. You kept them. Can you find them? Re-use them? Are duplicates causing font ID conflicts? How many are on your drive? How long have they been there? If these problems plague you, consider font doctor, a font utility from Morrison Soft Design.

Font Doctor scours your hard drive, finding all but System fonts. It checks them over, resolves any duplicates or font ID conflicts, and leaves you with a set of fonts that work. If you have hundreds or thousands of fonts lurking, set Font Doctor to auto-trash corrupt and duplicate fonts when it finds them, rather than having to confirm every single decision. If you prefer, it can move them to folders on your desktop, where you can review these misfits and duplicates before sending them to the bin.

You can also use Font Doctor to find your remaining fonts wherever they are, and organize them into a new, hierarchical font library. When creating your library, it is better to choose create alphabetical folders, not font family folders, since it's easier to avoid creating duplicates if you have a flatter file structure, and these programs never seem to put all of the fonts from a family together anyway. You might consider running the program twice to create two separate libraries: One just for TrueType, and the other just for PostScript. To summarize Font Doctor in a word: Fantastic.

Fixated on Free Fonts?
4,000 Fonts for $25! Will They Print?
You can find thousands of free fonts online, but be cautious with what you find. There are significant artistic and technical skills required to make fonts. Closely study the character spacing and kerning from your free font downloads, and make sure the text or headlines created with these fonts looks professional. Often it's the small quality considerations such as kerning pairs that are lacking in free fonts. Your readers may notice the difference.

Watch out for corrupt fonts. They can cripple your system until you isolate the culprit and remove it, which can take hours of your time. Many of the free fonts we've tested just fail to print, and many more create mediocre output results. If a corrupt font keeps the press waiting, it's anything but free.

Personalized Type Specifiers
Create Your Own Font Reference Guide
Windows. [www.moonsoftware.com] Windows users should start off with Moon Software's Font Xplorer Lite. It generates a sample from your installed fonts, with added functionality if you upgrade to the paid version.

Mac. [www.lemkesoft.com] Check out Lemkesoft's Fontbook. It creates a type specimen book from the fonts installed on your computer. For a real-world test of whether a font will print, choose to have it save each font's page as a separate print job and print with the PDF option on to provide a
real-world test of each typeface.

Windows Users: Tweak UI
Windows Fonts Repair
[www.microsoft.com] Tweak UI, a free utility from Microsoft, does many things, including fixing corrupt font resources. Upon launch, the last item in the menu is repair, and within the submenu you'll find repair font folder. This tool restores functionality to the fonts folder while fixing registry corruptions that deny access to fonts even when they appear to be installed correctly. Get Microsoft's Tweak UI by searching microsoft.com for Windows XP PowerToys.

Mac Users: Clean Your Caches!
Onyx: A Fantastic, Free Utility for Mac
[www.titanium.free.fr] We've seen big performance improvements clearing out the font cache from time to time, as for some reason, this cache tends to become corrupt. We recommend Onyx. It's free and it's easy to use and it works.


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