TurboTax does not support importing of ItsDeductible PDF'a.
To enter charitable donations -
Click on Federal Taxes (Personal using Home and Business)
Click on Deductions and Credits
Click on I'll choose what I work on (if shown)
Scroll down to Charitable Donations
On Donations to Charity, click the start button
Or enter charitable donation in the Search box located in the upper right of the online program screen. Click on Jump to charitable donation