Adobe Acrobat 6.0 won't open, only Reader?

Hi,
I am trying to open a PDF with my Adobe Acrobat 6.0 but the Adobe 8 reader keeps on opening it up. I’ve been able to do it in the past by selecting the files in the folder and right clicking then doing some ‘trick’ selecting open with Acrobat but this time I can’t get it to open. Any suggestions? I need to use the acrobat so I can save the file as a word document or jpg or add more pages, all of which I’ve been able to do previously.