In putting investment income into the online filing system, I tried to attach my investment income PDFs but kept getting an error message stating that they had to be PDFs which they were. So, to continue entry, I selected "I will mail the information to the IRS". I now have used a Costco purchased TurboTax desktop and would like to eFile my return. I would like to change that option to attempt attachment of the PDFs so that they would not have to be separately mailed to the IRS. They include several different 1099s including: DIV, INT, and B.
Any way to attach a PDF with that information to the TurboTax file before eFiling?