看图片和 PDF 的默认工具，但其实能做简单标注、签名、裁剪。很多人不知道它这么能干。
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Frequently Asked Questions
What is Preview?
看图片和 PDF 的默认工具，但其实能做简单标注、签名、裁剪。很多人不知道它这么能干。
Is Preview free?
Yes, Preview is completely free to use.