My returns were Accepted (both Federal & State) but I can only get TurboTax Online to download a PDF of the filed forms. How do I download the PDF with all Worksheets?

You can go back into the return and print from the Print Center.

https://ttlc.intuit.com/replies/7306547

Once you are back into your return:

1. In the black bar at the left side of your screen, click on TaxTools > Print Center 
2. On the TurboTax Print Center screen, click Print, save or preview this year's return.
3. Mark the box(es) for 2018 federal returns and your state,as well.
4. In the next section, select Tax Return, all calculation worksheets.
   
5. Click on the Save as PDF box.