Show a Preview Panel in Every Finder Window of Mac OS X
The Column view of the OS X Finder has long been popular with users who like to see a preview of what image or document they are selecting in the Finder. Of course, the problem with that preview panel is that up until OS X Yosemite, it was limited to the Column view, and if you wanted to see documents or files in a list or icon view of the Finder, it wasn’t there. That changed with OS X Yosemite, and now you can have a Mac file system preview panel available with every single Finder window if you’d like.
This is a really great feature particularly for those who view a lot of images or who just want to see a preview of the documents, files, and folders they’re looking at. The preview panel shows a decent amount of information, including file name, file size, date created, date modified, last opened, and what tags are used, as well as the ability to add new tags.
To show the Finder window preview panels:
- From any OS X Finder window in Yosemite, pull down the “View” menu and choose “Show Preview”
- Select any file to see the preview panel populate with data about the selected file
Any newly opened Finder windows will also show the preview panel. That means once you have chosen to “Show Preview” it will be enabled for all new Finder windows until you turn the feature off.
Here’s what the Finder window looks like after the panel is enabled and a file is chosen:
And here’s what the same Finder window looks like without the panel enabled, this is the default view:
It’s also worth mentioning that this feature can lead to a fairly dramatic performance hit with a folder that has a lot of high resolution images, similar to how showing Finder icon thumbnails can make older Macs suffer performance degradation. That’s a little unfortunate given this MacBook Air is a 2012 model, but your experience may vary. Nonetheless if you turn the Finder preview panel on and notice a slowdown in Finder performance, hiding it again is likely to boost speed again. You can also follow some general tips to speed up OS X Yosemite, which for some users may feel slower than prior OS versions on their Mac.