Electronic signature can be created in ERPNext using the Signature field type. This field allows you to write a signature in a block, just like the signature on a paper.
To create an electronic signature, follow the following steps:
1) Go to Settings > Customize Form.
2) Select the Form Type.
3) In the FIELDS table, enter a new row (field) called Signature and select the Field Type as Signature.
4) Click on Update.
5) Refresh the page and enter the signature as shown below.