cmcati-sign-pdf

Made by CMC ATI

Library that supports signing PDF documents by generating a hash value, then getting its signature provided by external services

Installation

  npm install cmcati-sign-pdf

Usage

Declare the library and initialize the variable containing the PDF document

const { CmcAtiPdf } = require("cmcati-sign-pdf");

const pdf = new CmcAtiPdf();

You can use import instead of require if you use Typescript

import { CmcAtiPdf } from "cmcati-sign-pdf"

Load the pdf document through the original property. The library supports data types: Buffer, ArrayBuffer, Unit8Array or string (base64 plain text, excluding "data:application/pdf;base64" at the beginning)

Next, create a placeholder and get the hash value to send a request to an external service that returns the signature and certificate with the generateHexToBeSigned function

Send the hash value from the previous step to an external service for signing. Finally, use the sign function to replace the placeholder with a valid signature