When I couldn't fix a font I looked for a clean version in my extensive font collections. That's the case with most things that get broken. In the past I have found corrupted fonts. Other times there are compatibility issues, though that's unlikely to be the case unless you're running OS X 10.6.8, Snow Leopard because this version of FontDoctor is compatible with systems back as far as OS X 10.7, Lion, which is rare these days. Some people's first reaction is to blame the software because that's easier than actually diagnosing the problem. That's often the case when software doesn't work. I suspect that if Font Doctor is crashing on you there is something wrong with your system that needs fixing. As it happens, I collected the fonts from AppleWorks 6 back in the day and there are Open Type versions of each of the bitmap fonts, so I replaced the bitmap versions with the otf versions and my installed fonts scanned clean. FD did find some bitmap fonts in my /Library/Fonts folder that had no matching PostScript version. Though because I've been using Font Doctor for so long (my oldest receipt is dated February 2002) I rarely find a corrupted font anymore. I've never had a problem with the basic functions of Font Doctor, including version 10.2.3.

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