First this is a great idea. Finally there is some movement on making Google Docs better.<p>I haven't used the feature, but from reading the blog post it is sad to see how poorly Google executes on products, even at the beta stage.<p>Some context:<p>I've built such a product before and eSigs are more simple than they seem as long as you do a few things. 1) You need to verify somebody's identity. Sending them an email with the request is a valid way of doing this. 2) You need to make the final signed document easily accessible (e.g. emailing all parties a copy of the signed document. 3) You need to not obscure what the person is signing (they need to be able to easily see the entire document if they wish) 4) You need to make it possible for all parties to verify the validity of a signature, which is done with an audit trail appended to the back of the document. 5) Some types of contracts are not valid to be signed with eSign. 6) The parties need to agree to do business electronically, but this is mostly up to them.<p>You do not need to create fake wet signatures, cryptographically sign a document, or do encryption beyond what is necessary for normal compliance. Those are all UX or marketing features: they don't hurt, just that according to experts I have spoken to, they aren't a factor when going to court.<p>And then we have what Google is offering:<p>From the screenshots, I think it is only a fake wet signature. I'm not sure how valid that is.<p>Apparently you cannot ask for an eSignature from non-Gmail users right now. But how are you supposed to know they are Gmail users? Can Google not send people a simple email with a link? This alone makes the feature almost worthless, and for something that seems so trivial.<p>They also said they will only be adding an audit trail later this year. This is really sketchy because I believe it means you, nor anybody else can actually verify if it has been signed. Again, this is quite trivial: you store the audit trail in a database, and you append the log as pages onto the back of the PDF document.