Are you using the Premier Online version or the Desktop installed program?
Transfer pdf to Online version. See the section if you used other software last year.
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-transfer-last-year-s-return-into-...
Transfer pdf to Windows Desktop
https://ttlc.intuit.com/community/entering-importing/help/transfer-last-year-s-return-to-turbotax-fo...
If you can’t transfer it to the Desktop program you might be able to transfer it into the Online version. Online looks like it takes more kinds of pdf than the Desktop program.
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-transfer-last-year-s-return-into-...
Then you can move your online return into your Desktop program to continue without paying for Online,
https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-switch-from-turbotax-online-to-th...
