Well, as it turns out, there’s a very easy workaround to this problem. It’s a heck of an app, but it’s unsigned, and if you have the OS X default settings on, you’ll get the error “ExifTool can’t be opened because it is from an unidentified developer,” as shown in the screenshot below. One such example is Phil Harvey’s ExifTool, a freeware utility for Mac users looking to read and write meta information in image files. This, in part, has to do with Apple’s efforts of keeping rogue apps off your system by forcing developers to sign their binaries so that OS X recognizes them as safe.īut some developers – who create a small utility and then pick up a different hobby, like sky diving – aren’t so inclined to purchase a certificate to make sure their app is always recognized by Apple as secure. The Mac is, by all means, one of the most secure computing platforms out there. At the end of the day, it’s still the user’s call, but OS X includes default settings that prevent the installation of certain types of apps.
Since the introduction of the Mac App Store, Apple has been very cautious as to what types of applications are allowed to go on a Mac.
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