> For the complete documentation index, see [llms.txt](https://docs.emudhradigital.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emudhradigital.com/documentation/digital-signature-validation-tool/validation-tool-overview.md).

# Validation Tool Overview

The **eMudhra Digital Signature Validation Tool (DSV)** verifies electronic and digital signatures on documents you receive, and produces a clear validation report. It is available as a web tool, a REST API for system integration, and a deployable component for on-premises use.

## What it supports

| Input            | Signature types                                                       |
| ---------------- | --------------------------------------------------------------------- |
| PDF              | PKCS#7 / PAdES (B, T, LT, LTA), multiple and certification signatures |
| XML              | XMLDSig / XAdES (enveloped, enveloping, detached)                     |
| Any file         | Detached CMS / PKCS#7 (`.p7s`) with original content                  |
| Signature + hash | Raw CMS verification against a supplied hash                          |

Signatures from eSign (v2, v3, Remote Key Storage), DSC tokens, Remote Signing Document Signer certificates and other CAs under the Root CA of India (RCAI) can be validated. Foreign trust lists (e.g., AATL, EU Trusted Lists) can be configured.

## Who uses it

* Banks, insurers and NBFCs verifying customer-signed forms
* Government portals accepting signed uploads
* Registrars, universities and employers verifying certificates
* Auditors and legal teams confirming signature validity at a point in time

## Outcome

Each signature is reported as **Valid**, **Invalid** or **Indeterminate**, with reasons and a downloadable report.