Please follow the following steps to add your signature to Gmail
Step 1: Select the mTap signature you want to copy.
Step 2: Tap on Copy Signature.
Step 3: Go to your Gmail and click on Settings in the top right corner.
Step 4: Tap on See All Settings and scroll down to Signature.
Step 5: Click on Create New.
Step 6: Assign a signature name and paste your new mTap signature.
Step 7: Set the signature default and hit on Save Changes.
Outcome: And viola! There you have your unique new mTap signature, either with your picture or your QR code.