Mac OS X 10.7 Lion to add Office file viewing, new text and signature annotation
In Mac OS X Lion, Preview 5.5 gains the ability to view Excel, PowerPoint and Word documents and expands its PDF annotation features.
Mac OS Xís Preview app originated as a way to view graphics and PDF documents without needing to install third party Reader software from Adobe. Apple has continuously made minor improvements to the app, and Lionís updates reflects the overall goals of the new operating system.
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