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6. Validate Fonts

Chapter 6. Validate Fonts

Corrupted font files are an old, familiar problem to Mac users. They were corruptible because they were "writeable"—the system opened the files not just for use but also to change ID numbers in an effort to avoid conflicting IDs. That approach, fortunately, fell by the Mac OS X wayside, with font files now strictly read-only. Font corruption reported under Mac OS X is almost solely of old files.

Validation is simply Font Book's way of checking font files for internal problems. It doesn't fix the problems; it merely reports them.

Font Book provides three ways of validating fonts:

  • Automatic validation: Triggered when you install a font through Font Book, automatic validation is why installing more than a few fonts at a time can cause Font Book to seemingly seize up for anywhere from a half minute to several minutes: you'll see the "in progress" gear spin as Font Book churns away at validating each and every font you just dragged in from that font CD.


  

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