Can my documents be provided in PDF and I will submit them via mail?

[VolvoGirl]

Yes if you download your tax return it will be in pdf. 

How to print your return before filing
https://ttlc.intuit.com/community/printing/help/can-i-print-a-copy-of-my-turbotax-online-return-befo...

How to mail a return from the Online version
https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...

[DawnC]

Yes.  If you choose to file by mail, you will print your tax returns and mail them.

[xmasbaby0]

When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS/state received the return.

Federal and state returns must be in separate envelopes and they are mailed to different addresses.  Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.