GrabSign allows its users to invite one or multiple signers to put their signatures on the document. They receive a signature request via email with a link to the document. This kind of invitation is called signature by invite.
You can either select in-person signing or signature by invite. You can select in-person signing on the ‘Add Recipients’ page after uploading the document.
Signature by invite ensures that the document sent is signed by the right person. It verifies the recipient is indeed who they claim to be as the link to the document is received in the email of the signer and, no one else can access it. You can add an extra level of security by adding a passcode to the document. In cases of dispute, you can prove that the person signed the document willingly.