You do not need to remove the QuickTime plugin to save PDFs.
When you view a PDF in Safari's window, just move the mouse cursor to the bottom of the window and four icons will appear. Click the one at the right to download the PDF directly on your Downloads folder. (Pictured below)
You will be able to open the PDF with Preview and print it.
Open the Library folder in your home folder as follows:
☞ If running Mac OS X 10.7 or later, hold down the option key and select Go ▹ Library from the Finder menu bar.
☞ If running an older version of Mac OS X, select Go ▹ Go to Folder… from the Finder menu bar and enter “~/Library” (without the quotes) in the text box that opens.
Delete the following items from the Library folder:
Relaunch Safari and test.