Where can I find the printing instructions...they did not print with my pdf. I need to know where to mail my taxes

In order to get the filing instructions to file by mail, you'll need to select "File by Mail" when going through the FILE portion of your TurboTax interview.  To switch from e-file to file by mail, see the instructions I'm linking below.

How do I switch from e-filing to file by mail? 

have you heard of the IRS website www.irs.gov ??

Type "mail my return" into the search box there.