Stable signalNo paid features detectedHigh-risk permissions

ePadLink SigCaptureWeb SDK Extension

The SigCaptureWebSDK Chrome Extension enables users to capture signatures on ePad Link signature pads.

Users200KCurrent public install base

Rating3.1Store average score

Reviews11Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

ePadLink SigCaptureWeb SDK Extension Media preview

2 assets

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User Growth Over Time

Rating trend

7-day rating trend

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7-day rating change

Start

3.09

Latest

3.09

7-day rating change

0.00

2026年7月13日2026年7月19日

Growth overview

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1-day growthFlat

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7-day growthFlat

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30-day growthFlat

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Technical snapshot

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Version1.2.9.0

ManifestV3

Size22.6KiB

Languages1English (United States)

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

The ePadLink SigCaptureWeb SDK Extension allows developers and integrators to easily capture handwritten signatures securely in web applications running in the Chrome browser, and to bind those signatures to the document being signed.

Reviews

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Store average score3.1Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average1.0Average computed only from synced review bodies below

Reviews with text1Synced review bodies

Total ratings / reviews11Chrome Web Store public rating/review count

Store average score: 3.1. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

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1★

Onslaugth2019年11月16日

No funciona sale el siguiente error cuando tratas de utilizarlo y eso que solo estoy siguiendo el manual Clase no registrada (Excepci�n de HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

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AI product read

Chrome bridge/SDK extension that enables web applications to capture handwritten signatures via ePadLink ePad signature pads using Chrome Native Messaging

Enables secure, hardware-based signature capture in web applications running in Chrome, allowing signatures to be bound to documents being signed

1. Web page dispatches a SigCaptureWeb_SignStartEvent DOM event with signature parameters. 2. Content script catches the event and sends message to background service worker. 3. Background script connects to native messaging host (com.epadlink.sigcapturewebsdk.win) on the local machine. 4. Native host communicates with the physical ePadLink signature pad. 5. Signature data (image, raw biometric data, pad info) flows back through native host → background → content script → web page via custom DOM event SigCaptureWeb_SignResponse.

Target users: Web application developers and integrators needing hardware signature capture / End users signing documents with ePadLink ePad signature pads in Chrome

Extension is very small (4 text files, ~8KB of JS) with straightforward native messaging bridge logic — analysis is complete.
Requires separately installed native messaging host (SigCaptureWeb SDK) and physical ePadLink hardware to actually function — cannot be fully tested without hardware.
The ePadLink hardware and SDK themselves are commercial products, but the extension itself contains no payment gates.

Monetization

No paid features detected

No references to payment, subscription, premium features, billing APIs, or upgrade UI anywhere in the source code. The 'pro' keyword matches were false positives from base64-encoded verified_contents.json data and the word 'process' in a comment. The extension is a free SDK bridge; the ePadLink hardware itself is a separate physical product.

Confidence: 100
Payment platform: --
Source: AI / High
Login required: No
Reason: No login, authentication, or account system exists in the extension. It is a pure local bridge using Chrome Native Messaging to communicate with hardware — no credentials are requested or checked. The 'signin' keyword match was a false positive from the filename 'SigCaptureWebSigningChromeExtn.js' (contains 'Signing', not 'sign in').

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

敏感权限：nativeMessaging

Publisher

Topaz Systems Inc

Tony Zank

Email: [email protected]
Phone: +18055208338
Address: 875 Patriot Dr Unit A Moorpark, CA 93021-3351 US

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