When I click on a PDF, to open it from the web, it takes me to a [Save As] page instead of opening. I want my PDF's to open when I select them. How do I make PDF's open when clicked?
Have you got adobe reader installed in your browser?
If not, that will most likely be the reason. Download it and run the installer again.
How do I make PDF's open when clicked?
To be blunt, you can't.
How a PDF is viewed is controlled by the viewer's computer. Their settings decide whether the PDF is displayed within the browser, opens in Acrobat outside the browser or prompts them to download it.