[jesicawillss]

I want to know that if I use signature keyword bold or italic or colored than what is its effect? Can it help in getting more back links?

[shabbir]

Does it means more links or same number of links? The answer will answer your query

[stacey]

Make it has simple text that will do.

[Click SSL]

I think it doesn't effect when you bold, italic or colored as per search engine view. But It can help to attract people to your website through signature.

[shrikrishnatech]

no it doesn't matter keep plan link on signature