Pacifist 是 Mac OS X平台中的一款软件提取工具，你可以用它来直接在后台查看或修改安装包和安装程序的内容，而无需运行安装程序，在解决许多棘手问题时非常有效。




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利用Pacifist，你可以详细的了解安装包里究竟有哪些文件，要被安装到什么位置，并且可以将某些包含的应用、文件和目录直接提取出来。
除了安装包（pkg）文件以外，Pacifist还可以读取并提取dmg、zip、tar、tar.gz、tar.bz2、xar等格式的安装文件甚至包括Mac OS X系统自带的程序！
Pacifist 3.2 更新：

• Compatibility with OS X 10.9 Mavericks and its packages
• Updated graphics for Retina Display
• Converted to Objective-C ARC for greater efficiency and reliability
• Rewrite the helper tool code for greater security
• Made better use of concurrency for greatly improved performance
• Now uses Notification Center on Mac OS X 10.8 and higher
• Added support for Zip archives using Method 1 (Shrink) and Method 6 (Implode)
• Fixed a bug which could cause errors on loading some packages
• Fixed a rare crash which could occur while extracting files from some archives
• Fixed a bug which could cause some spurious buttons to appear when using VoiceOver
• Fixed a bug which could cause certain packages to fail to load
• Improved performance when installing a large number of files
• Fixed a bug which caused the Finder not to automatically reveal extracted files
• Other miscellaneous bug fixes