is there a way to download all the data in my current tax return to a pdf?

[paradisevillas]

(not a filed return)

[VolvoGirl]

Yes.  Before filing you can preview the 1040 or print the whole return. You have to pay any fees first before you can see all the forms, etc.
https://ttlc.intuit.com/community/accessing/help/how-do-i-preview-my-turbotax-online-return-before-f...

[PaulaM]

There is a way to save all the worksheets and forms used along with your return. It would be the most inclusive pdf. 

Open up your return (add a state to re-open), then go to the print section and select the option with 'All worksheets'.