Many Apple products include manuals in Portable Document Format (PDF). You can read these and other PDF documents with
Preview.
If you double-click a PDF file and a different application opens, you can use these steps to tell Preview to open PDF documents:
- Select the PDF file in the Finder.
- From the File menu, choose Get Info.
- In the Info window that appears, click the disclosure triangle next to "Open with."
- Set the pop-up menu to Preview.
- Click the Change All button that's immediately below the pop-up menu.
If you like to use shortcut menus (Control-click), you can use the alternate method shown in this
movie. To change from "Open with" to "Always open with," as you see in the movie, press the Option key.