why does my adobe acrobat open pdf as a word document?

Answer 1

The filetype "PDF" is associated with Word for some reason. Right-click on your PDF and choose "Open With". Choose Acrobat from the list of programs, then check the box that says "Always open with this program" or something like that. Then you should be all set.

Answer 2

You have an incorrect file association. To fix it and also learn how to fix other files' associations in the future do this:
Open Windows Explorer
On the top menu select Tools
Then Select Folder Options
Click on the File Types Tab
Wait while it searches
Scroll Down to the incorrect program
Click and Highlight the program
If a new file is suggested and you don't want to use it, select new
Then type the extension of the file name you want your file to be associated with.
The most common use for this that I have found is to associate jpg, tiff, bmp files with the graphic program you want to use.

Good luck.