About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...

Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

Last Updated: November 6, 2024 ISSUE When you try to create a new signature linked to your own account (cloud signatures), you notice that the newly created signature gets deleted after a while or you may find that the signature does not sync up with Outlook Web App (OWA). Outlook Desktop added roaming signatures starting in Version 2303 and higher. For more information, please go to Outlook ...

摘要 Email 簽名能在你的商業溝通中建立專業一致性，並確保收件人在每則訊息中都擁有你的聯絡資訊。 在Outlook中，你可以為不同用途設定多個簽名 (內部與外部、個人與商務) ，並選擇是否自動包含在新郵件、回覆或轉寄中。 你的簽名可以包含文字、連結、圖片和圖片 (，例如你的手寫簽名或標誌 ...

See how to view the details for signatures and certificates.

Wordまたは Excel (デスクトップ) で署名行に署名する 署名欄に署名すると、目に見える署名とデジタル署名が追加されます。 ファイルで署名行を右クリックし、 [署名] を選択 します。 [保護されたビュー] でファイルが開く場合は、ファイルが信頼できるソースの場合は 、 [ Edit Anyway]\ (とにかく ...

手写签名可让你的文档具有个人风格。 你可以扫描你的签名并将其存储为图片，以便插入文档中。 您也可以 插入签名行 来指示签名位置。 创建和插入手写签名 您需要扫描仪来执行此操作。 在纸张上写下您的签名。 扫描页面，并将其以通用文件格式保存在计算机上：.bmp、.jpg 或 .png。 有关如何 ...