No---you cannot attach pdf files to a tax return you are e-fling using TurboTax. If the IRS wants additional information that is not included with your tax return, they will request it by sending you a letter.
You were getting that information from a site for paid tax preparers who are using professional tax software. You are using the do-it-yourself tax software if you are using TurboTax.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
