from the contextual menu, select open with. in a finder window, right click (or ctrl click) the file whose default launch app you want to change. The following steps show you how to do just that. however, if a user downloads and installs adobe’s acrobat reader or adobe acrobat dc, the default file type will change so that all pdf files will open with adobe acrobat. for example, pdf files open by default in the mac preview app. Any time a user installs a new application on a mac, it becomes the default mac app for that file type. click open with if the section isn't already expanded.
for example, one with a extension (a photo). right click on a file that uses the file type you'd like to change the default for. How to change the default mac app for specific file types. you can also right click, ctrl click, or two finger clicking the file and select “get info”. just click on one of the files and choose file > get info from the main menu or use the cmd i keyboard shortcut. it’s really easy to change the default application a type of file opens in. Changing the default application for file types in os x.
