I want to add eSignature on Sales Invoice, So I added a custom field in Customize Form > Sales Invoice as shown in below article.
https://docs.erpnext.com/docs/v13/user/manual/en/customize-erpnext/articles/electronic-signature
I added it successfully, but I am unable to see this “Signature Field” field in New Sales Invoice, as well as I am unable to add Signature, there is no any filed to draw signature as shown in article.