Not sure if this is the right place to post this question.
How to you put your signature on a document that has been e-mailed to you and needs to be sent back?
I'm sure I need some kind of program but I"m not familiar with them.
Thank you.

What format was the document sent to you? The usual way to do this is to print off the document, sign the signed document, scan it and save it as a PDF document. You can then send back as an attachment.

Thank you Draclvr,
That sounds like the way to go or do it the old-fashion way "send it in the mail".

That's always an option!!