Preview (software)
 |
|
.png)
Preview 8.0 running on OS X 10.10 Yosemite
|
|
| Developer(s) | Apple |
|---|---|
| Stable release |
9.0 (macOS version) / August 19, 2016
|
| Development status | Active |
| Operating system | macOS |
| License | Proprietary |
| Website | www.apple.com |
Preview is the image viewer and PDF viewer of the macOS operating system; it enables users to view and print digital images and Portable Document Format (PDF) files. Preview uses Apple's implementation of the PDF specification, the Aqua graphical user interface, the Quartz graphics layer, and the ImageIO and Core Image frameworks.
Like macOS itself, it originated in the NeXTSTEP operating system from the company NeXT. It was part of every release of NexTSTEP OS since 1989.
Preview can open the following file types:
The version of Preview included with OS X 10.3 could loop animated GIFs via an optional "play" button that could be added to the toolbar. With OS X 10.4, Preview lost playback functionality and animated GIFs would instead display as individual frames in a numbered sequence.
As of OS X 10.9.2 Preview does not support ISO-standardized PDF (ISO 32000), and when saving, destroys aspects of PDF files without warning to the user.
Preview can also encrypt PDF documents, and restrict their use; for example, it is possible to save an encrypted PDF so that a password is required to copy data from the document, or to print it. However, encrypted PDFs cannot be edited further, so the original author should always keep an unencrypted version.
Some features which are otherwise only available in professional PDF editing software are provided by Preview: It is possible to extract single pages out of multi-page documents (e.g. PDF files), sort pages, and drag & drop single or multiple pages between several opened multi-page documents, or into other applications, such as attaching to an opened email message.
PDF and TIFF documents can also be annotated and supplied with keywords, and are then automatically indexed using macOS's system-wide Spotlight search engine.
...
Wikipedia