Can't open PDF's

[ltournat]

Not sure if this is the correct category to place this question in, so feel free to move if necessary.

Anyway, I somehow managed to change my settings for when I open up a PDF attachment, to attempt to open it up in Keynote, rather than Adobe. Can someone help me change back that setting to open a PDF in Adobe rather than Keynote?

[ElDiabloConCaca]

Locate a PDF file on your hard drive.

Do a "Get Info" on the file (highlight the file, then press command-i).

In the resulting info window, under "Open with:", select your preferred application that you want to open all PDFs with.

Click the "Change All..." button.