Emailing the PDF of a tax return is not secure.  You should either print the tax return and deliver it in person or mail the tax return to the agent.

If you have filed your 2016 tax returns and they have been accepted, when you sign onto your online account and are on the Welcome Home screen, click on My TurboTax at the top of the screen.  When you are on your 2016 Timeline, under the section for SOME THINGS YOU CAN DO, click on either option for Download/print return (PDF) or Download all forms and worksheets

In the section Looking for prior year returns?  Click on Load my tax timeline to access prior year tax returns.

Once the PDF has been downloaded to your computer, you can view or print the return with any PDF compatible viewer, such as Adobe Reader.

If you used the desktop CD/Download editions installed on your computer, the only copy of your tax data file and any PDF's will be on the computer where the return was created.  TurboTax does not store online any returns completed using the desktop editions.