> **Source:** https://knowledge.leegality.com/document-execution/esign-type/virtual-sign/fingerprint-capture > **Site:** Leegality Knowledge Base — https://knowledge.leegality.com > **About:** Leegality is a document execution platform covering eSigning, stamps, NeSL, workflows, and REST API integration. > **Navigation:** Every article on this site has a plain-text version at `.txt` (this format). To get an index of all articles with their `.txt` links, read: https://knowledge.leegality.com/llms.txt > **AI Guide:** For instructions on how to navigate this knowledge base as an AI agent, read: https://knowledge.leegality.com/ai-readable.txt --- # Fingerprint Capture - Virtual Sign Affix fingerprint type is the third subtype of Leegality’s Virtual Signature type that allows for users to sign using their fingerprint via a registered biometric device connected to a Windows PC or Android Mobile phone. ## Sending Journey 1. On the invite page 2. Hover over Signature type dropdown 3. Enable **Virtual Sign** 4. Click gear icon and enable **Allow invitee to affix fingerprint image**. ## Signing Journey ### Prerequisites - Fingerprint capture device - **Mantra MFS500** biometric device for mobile application signing journey - **Mantra MFS100 and MFS500** biometric device for web-based and mobile application signing journey - Leegality Helper app > **Caution** > > - Mantra has **discontinued support for the MFS100 AAR** for mobile applications. As a result, MFS100 devices are no longer supported for Virtual Fingerprint flows in the Leegality Helper App. > **Info — Note** > > Fingerprint Virtual Sign is not supported for Mac OS or iOS. ### Signing Journey 1. On the signature page, depending on the activated virtual sign types, select **Affix Fingerprint** or proceed directly to the fingerprint capture page. 2. When you reach the fingerprint capture page, Leegality detects whether the biometric device is connected. 3. If the device is detected, press **Capture Fingerprint**. 4. Based on the fingerprint capture result, one of the following screens appears: - If the capture is unsuccessful, retry the fingerprint capture. - If the capture is successful, you can either: - Click **Proceed**, or - Delete and re-capture the fingerprint. 5. After clicking **Proceed**, check the consent box and click **Sign Document**. The document will be successfully signed. > **Info — Note** > > The signature appearance includes an image of the captured fingerprint.