How can I generate a password-less version of a protected PDF? I have a PDF file that has been password protected.  I know the password.  The password's only use, in our case, is to protect the PDF during email transmission.  Now that I have the PDF, I'd like to remove the password, as it is annoying to have to look-up and type it in every time I want to use the PDF.

In a pre-Lion version of Preview, I was able to print and "Save As PDF" to create a copy of the file that didn't have a password.  However, when I try the same maneuver in Lion, the "Save as PDF" entry is greyed-out.

Is there some other software (preferably free) that would let me save the PDF without the password?  Some other thing I can do to the file to enable Preview to "Save as PDF"?
Open the document in Preview, select File > Duplicate, enter the file location and save a copy.

You can do a similar thing with File > Export.