In Mekari Sign, apart from adding signatures, you can also modify and delete signatures that you have created. Here are the steps:

1. Go to Settings menu.
2. Click Account tab and select eSignature.
   
3. Click "Edit" to change your signature and make changes to the signature.
   
4. Click "Remove" to delete your signature.
   
5. Then click "Delete" and the signature will be successfully deleted.