To learn about digital signatures (also known as digital ID), what they can be used for, and how to them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Signature Line in the Text group. In the Signature Setup dialog ...

在 Microsoft 365 文件中插入签名行时，作者可以指定有关预期签名者的信息以及签名者的说明。 当将文件的电子副本发送给预期签名人后，此人将看到签名行和要求其签名的通知。

在移动设备上，有一些解决方法可以尝试在 Word 中向文档添加签名行。 可以使用下划线键或单个单元格表向Word文档添加签名行。

Synchronization of contacts between your Outlook account and your Apple iPhone or iPod touch requires Apple iTunes. You can configure which items are synchronized during a one-time set up process.

Microsoft Lens is an app for your iOS device that lets you easily capture, use, and share information from documents, whiteboards, photos, or business cards.

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

培训：了解如何在 Outlook.com 或Outlook 网页版中创建签名和创建自动答复。

在Outlook 中，可以为电子邮件创建一个或多个个性化签名。 签名可以包括文本、链接、图片和图像 (，例如手写签名或徽标) 。

To save Outlook contacts to your native address book: First go to Device Settings > Contacts and confirm that the 'Default Account' is set to 'iCloud'. If you do not see this setting that is OK, the setting should only be available if you have more than one account added to your device.

本文介绍如何获取或创建用于 Office 文档的数字签名。 若要详细了解如何在 Office 文档中使用它们，请参阅 在 Office 文件中添加或删除数字签名。