Digitally Signinig Sales Invoice PDFs

dhananjay · December 29, 2024, 9:09pm

Customers now expect us to sign PDFs digital using company DSC. Currently the process involves using Adobe Acrobat.
I would like to integrate it with ERPnext and make signing seamless. The USB token could be detected by Qz Tray(may be)
I can sponsor the development.

revant_one · December 30, 2024, 3:43am

Check this is it helps:

gist.github.com

https://gist.github.com/revant/39456fa8f9ce8c47f695fac9611586d1

digital_signature.py

# License: MIT
# Store signatures in "Digital Signature"
# it uploads signatures on S3 for secure storage.
# Code snippet to fetch signature and sign document

import io
import os
import ntpath
import boto3
import botocore.exceptions

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dhananjay · December 30, 2024, 8:07am

I need someone to integrate with India Compliance app. Could you recommend someone who would be interested in developing this.

gsarunk · December 30, 2024, 2:57pm

The solution looks good.
Do we have any other means to securely store the signature within frappe.
Otherwise any other means to store instead of S3

revant_one · December 30, 2024, 3:19pm

Just store as private file. Not as secure as object storage.

Try restic.

S3 is approved by most compliance teams as secure storage. Access to it can be revoked on removal of keys.