a pdf is not importable into Turbotax.
one workaround is to enter summary totals. this will allow efiling
then you mail in form 8453 with the PDF
https://www.irs.gov/pub/irs-pdf/f8453.pdf
When and Where To File
If you are filing your tax return using an online provider,
mail Form 8453 to the IRS within 3 business days after
you have received acknowledgement from your
intermediate service provider and/or transmitter that the
IRS has accepted your electronically filed tax return. If
you don’t receive an acknowledgement, you must contact
your intermediate service provider and/or transmitter.
Mail Form 8453 to:
Internal Revenue Service
Attn: Shipping and Receiving, 0254
Receipt and Control Branch
Austin, TX 73344-0254
