Is signature required for online tier-2 visa app

[ksnskw]

Hi, I am currently applying for tier-2 visa extension.
I fill out the online application form and print it out.
However, I cannot find any place for signature in the downloaded form.

Is the signature not needed for tier-2 visa extension visa ??
I apply for myself and my dependant (wife and a child).

[fsix]

I don't believe a signature is required because I recently made an application for extension with the help of our company lawyers and I was told it was all online and I didn't need to sign anything