Name: DOCUSIGNER: PDF WORKSPACE
Author: Jayesh Pandey

DocuSigner provides business teams with a private workspace to sign contract PDFs securely.

"Every signature generates a SHA-256 hash stamp containing signer metadata, ensuring document integrity."

Secure Signing

Constructed with React and Node.js. Incorporates PDF-lib client side to superimpose vectors, while backend routers sign files with private system RSA certificates.

System Architecture

            [CONTRACT WORKSPACE CANVAS]
            React App with canvas signature pads / PDF-lib page renderer
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            [SIGNATURE VERIFICATION CORE]
            Node.js Express / RSA Cryptographic Stamp Generator / OpenSSL signer
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            [DOCUMENT SAFE]
            AWS S3 storage (Encrypted signed PDFs & audit trails)