You may also try to go to the file, right click it and locate the line that says, "Open With" and selected the adobe program. On some occasions, a program and a file will lose association with each other and by doing this, it helps re-associate them. It is a common problem that I have seen in the past.
Step
Action
1
Click on the file that will not open
2
Right Click and choose Properties
Click on change
3
Choose Adobe Reader and then click OK
4
You have now established the association for the pdf file type
Last Wiki Answer Submitted: January 31, 2013 4:33 pm by Richard134215 pts.
If you live outside the United States, by submitting your email address you consent to having your personal data transferred to and processed in the United States.
It’s because you don’t have any application installed that is registered against the .PDF file extension. I suggest PDF-Xchange. Run a oogle search for [ pdf-xchange viewer download ], download and install it. — Tom
The Adobe Reader program probably isn’t installed, and I won’t advise installing it. If a .PDF viewer is needed, any of a number of alternatives are available. I’ve been using PDF-Xchange for a couple years. Adobe is a good program, but I’ve had trouble agreeing to some of their licenses in the past. — Tom
It’s because you don’t have any application installed that is registered against the .PDF file extension. I suggest PDF-Xchange. Run a oogle search for [ pdf-xchange viewer download ], download and install it. — Tom
Should be “Run a Google search…” — Tom
The Adobe Reader program probably isn’t installed, and I won’t advise installing it. If a .PDF viewer is needed, any of a number of alternatives are available. I’ve been using PDF-Xchange for a couple years. Adobe is a good program, but I’ve had trouble agreeing to some of their licenses in the past. — Tom