What page of the tax return is considered the signature page? Since we do these online there doesn’t seem to be a signature page to be able to send it as proof of taxes.

Did you efile?  Who needs to see the signature?   

The new 1040 is 2 half pages but now print on 1 sheet with the Signature line in the Middle.

You verify your efile by entering your 2017 AGI.

When you e-File, your return is presumed to have been signed.