Changing the default PDF viewer
Last week a friend sent me a PDF that had some rich content embedded in it; a small video that Mac Preview would not let me see. I really like Preview but figured I might as well grab the free Acrobat Reader so that I could view the more advanced PDFs people were creating.
Adobe Acrobat Reader is a pretty big install but after doing so I was able to see the PDF file - and its embedded video - just fine. There was a catch though; Acrobat is slower than Preview and now it was my default PDF viewer.
For the life of me I could not figure out how to make Preview my default viewer again. I right clicked on a PDF file and from the pop-up menu selected Open With - the sub menu that appeared allowed me to open it in Preview but not set that as the default.
At this point I did what I always do - Google up the problem and look for a solution. One of the first solutions I found was to use RCDefaultApp - a preferences pane add-in that allows you to see and set the default applications for file types, MIME types, etc. It worked great but I kept thinking that it was silly that I would need an add-on in order to do this. I am going to keep RCDefaultApp around though - it's pretty handy.
Finally, the way to do it in OS X
I finally managed to find it with a little more Google work. Right click on a file, select Get Info and, at the bottom of the Get Info window was an "Open With" area. From there I could see and set the default viewer and also click the Change All button to change it for everything.
Not long after I put this up Jerome put in a comment that you can hold down the Option key while right clicking and the menu selection changes to Always Open With - no need to even go into the Get Info window. Thanks Jerome!
Now I can see my PDFs quickly in the native Preview application and use Acrobat Reader when I need the extra features it affords.
Comments
In general matter, hold option key to change the menus contents. So you don't need RCDefaultapp anymore ;-)
Cheers
The problem was that when I tried that it didn't stick! That was frustrating.
Check this tip on MacForums to see how to change it back.
How to make Safari stop using Acrobat for PDF preview
You can also change Safari to automatically open PDFs in the external viewer (I'll let you search for that.) And if you haven't worked it out yet, you can right click on open PDF in Safari and choose to open it in Preview (or presumably Acrobat if it's still your default.)
This may be a function of the newer OS X version I am running - not sure.