Wet Signature vs Electronic Signature: What’s the Difference?

Wet signatures use ink on paper, while electronic signatures let a person show their intent to sign an electronic document. The right method depends on the document type, signing workflow, and applicable law.
ウェット署名とは

What is a wet signature?

A wet signature is a handwritten mark made with ink on a physical document to show approval or intent. The signer applies it directly to the paper record.

The signed paper becomes the original record. A wet signature may still be requested when a law, regulator, or counterparty requires handwritten form or an original document.

手書き署名はいつ使用すべきですか?

  • Original-paper filings required by applicable rules

  • Agreements where the receiving party requests an ink-signed original

  • Certain estate, property, family-law, or notarized documents, depending on jurisdiction

  • Offline situations where the signers cannot use an electronic workflow

電子署名とは?

An electronic signature is an electronic symbol or process that a person uses with the intent to sign a record. It can be a typed name, a drawn mark, a scanned signature image, or a consent action in an eSignature platform.

Electronic signatures are a broad category. A workflow may also add identity checks, audit trails, tamper evidence, or a certificate-based digital signature, but those controls are not inherent to every electronic signature.

When should you use an electronic signature?

  • Business契約およびサービス契約

  • Purchase orders, approvals, and invoices

  • 雇用および人事書類

  • Consent forms and other remote signing workflows

手書き署名と電子署名にはどのような違いがありますか?

In the United States, laws such as the ESIGN Act and UETA generally prevent a signature from being denied legal effect solely because it is electronic, subject to their scope and exceptions. The EU’s eIDAS and Switzerland’s ZertES establish their own electronic-signature frameworks and assurance levels. Requirements depend on the jurisdiction, document, and signing process.

An electronic signature is the broad category, while a digital signature is a cryptographic technique that can support an electronic-signature process. This page compares signing on paper with signing electronically; the linked guide explains the technical distinction.

手書き署名

A handwritten mark made with ink on a physical document. Verification relies on the paper original and the surrounding signing process.

電子署名

An electronic symbol or process used to show intent to sign an electronic record.
Examples include typed names, scanned signatures, drawn marks, and consent actions within an eSignature workflow.

Are electronic signatures more secure than wet signatures?

Neither method is automatically more secure in every situation. Wet signatures depend on physical-document controls. Electronic-signature workflows can add access controls, identity verification, tamper evidence, and audit trails, with the assurance level determined by the platform and configuration.

Sign.Plus supports controlled access and provides a certificate of completion that records signing events such as signer details, timestamps, IP addresses, and devices. These records can make an electronic workflow easier to trace and verify than a standalone paper signature.
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Sign.Plusの背景ブランディング

企業が手書き署名から電子署名に移行しているのはなぜですか?

‍Businesses often replace wet-ink workflows when paper creates challenges such as:
‍
  • 時間のかかるプロセス
  • 紛失や損傷のリスク
  • 人的エラー
  • コスト
  • 長いターンアラウンドタイム
  • 環境コスト
  • セキュリティリスク
Using an eSignature platform such as Sign.Plus can offer:
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  • Faster signing workflows
  • Centralized electronic records
  • Remote access from web and mobile apps
  • Lower printing and mailing costs
  • Automated status tracking
  • Less paper use
  • Configurable security controls and audit evidence

書類に電子署名したい、または署名のために書類を送付したいですか?

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よくある質問

手書き署名の別の名前は何ですか?
矢印
“Wet signature” is also commonly called a handwritten, ink, physical, or traditional signature.
Can a scanned wet signature be used electronically?
矢印
A wet signature can be scanned with a tool such as Scan.Plus and inserted into an electronic document. It may serve as an electronic signature when the signer adopts it with the intent to sign, but the image alone does not provide certificate-based verification or tamper evidence.
電子署名は手書き署名と一致する必要がありますか?
矢印
No. An electronic signature does not generally need to look like the signer’s handwritten signature. What matters is the signer’s intent and the requirements of the signing process. You can create or draw one with our eSignature generator tool.

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