When I try to open a PDF file, it opens with a program called Preview. How can I change it so that my PDF files open in Adobe Acrobat?
Locate your PDF file, hold down the Control key on your keyboard and single-click on the PDF file. From the pop up menu, select Get Info. About half way down the Information window, click on the drop-down under Open With and select Acrobat Reader. Then click on Change All. Any file with a .PDF extension will open in Acrobat Reader.