|Initial release||October 26, 2007
(Mac OS X 10.5 "Leopard")
|Operating system||Mac OS X|
Quick Look is a quick preview feature developed by Apple Inc. which was introduced in their operating system, Mac OS X v10.5 "Leopard". It was announced and demonstrated at Apple's Worldwide Developers Conference 2007.
While OS X's Finder has always had icon previews, Quick Look allows users to look at the contents of a file in the Finder at full or near-full size, depending on the size of the document relative to the desktop. It can view files including, but not limited to: PDFs, HTML, QuickTime readable media, plain text and RTF text documents, Apple Keynote, Pages and Numbers, ODF documents, Microsoft Word, Excel, and PowerPoint files (including OOXML), RAW camera images.
Quick Look can also be opened in full screen and launched from the command line. Additionally, multi-page documents like PowerPoint slide shows can be navigated using the arrow keys.
Supported file types
Since its debut, Quick Look has included a number of generators for common file types.
|AAC||10.5||Cover art in icon view and can play back audio in full preview.|
|Apple Icon Image format||10.5|
|GIF||10.5||Did not animate animated GIFS without additional plugins until MacOS 10.7.|
|HTML||10.5||Does not load remote resources or execute scripts.|
|MP3||10.5||Cover art in icon view and can play back audio in full preview.|
|QuickTime movie||10.5||Additional stream formats require the appropriate QuickTime extension to be installed.|
|This section requires expansion. (April 2013)|
Plug-ins can be added to Quick Look to allow previewing the content of other file formats. Plug-ins can also be used to add additional functionality to Quick Look such as syntax highlighting for source code files.
To add a plug-in to Quick Look it needs to be placed in the folder
/Library/QuickLook/. To activate that plug-in, either the computer needs to be restarted or Quick Look needs to be reset with the command
There are multiple ways to invoke Quick Look.
- ⌘ Cmd-Y
qlmanage -p file
- File – Quick Look file name
- Context menu (right-click or Control-mouse click), then Quick Look file name
- A directory of Quick Look Plugins for Apple’s OS X 10.5 Leopard
- Gloobus, an Linux application based on Quick Look