A watermark is a faded background image that displays behind the text in a document. You can use them to indicate a document’s state (confidential, draft, etc.), add a subtle company logo, or even for a bit of artistic flair. PowerPoint doesn’t have a built-in watermark feature like Word, but you can still add them with a text box.

水印是褪色的背景图像，显示在文档中的文本后面。 您可以使用它们来指示文档的状态(机密，草稿等)，添加微妙的公司徽标，甚至具有一点艺术气息。 PowerPoint没有Word之类的内置水印功能，但是您仍然可以在文本框中添加它们。

It’s not quite as easy to add watermarks to PowerPoint as it is to Microsoft Word. However, you can add watermark text to the background of individual slides or all slides at once using the Master Slide function.

向PowerPoint添加水印不像向Microsoft Word添加水印那样容易。 但是，您可以使用“主幻灯片”功能一次将水印文本添加到单个幻灯片或所有幻灯片的背景。

We’re going to look at how to add watermark text to all slides in a presentation by using the Master Slide feature. If you only want to add watermark text to an individual slide, you can skip the steps for going to the Slide Master.

我们将研究如何使用“主幻灯片”功能向演示文稿中的所有幻灯片添加水印文本。 如果仅要将水印文本添加到单个幻灯片，则可以跳过转到幻灯片母版的步骤。

First, switch to the “View” tab on the PowerPoint ribbon.

首先，切换到PowerPoint功能区上的“查看”选项卡。

Click the “Slide Master” button. This brings up the master slide layout for all of the slides in your deck.

单击“幻灯片母版”按钮。 这将调出甲板上所有幻灯片的主幻灯片布局。

Click on the first parent master slide.

单击第一个父母版幻灯片。

If you’re only inserting watermark text on a single slide, this is where you’d start; select the individual slide on which you want to insert the text rather than going to the slide master.

如果仅在单张幻灯片上插入水印文本，则从这里开始。 选择要在其上插入文本的单个幻灯片，而不是转到幻灯片母版。

To insert the text or image you want to use as your watermark, click the “Insert” tab.

要插入要用作水印的文本或图像，请单击“插入”选项卡。

Click the “Text Box” button.

点击“文本框”按钮。

A text box will appear on your slide.

一个文本框将出现在您的幻灯片上。

Type whatever you would like in that text box.

在该文本框中键入您想要的任何内容。

After you have typed what you want to, you can mess with the formatting of the text box. You might want to drag the curved arrow to rotate the text, like so:

键入所需的内容后，您可能会弄乱文本框的格式。 您可能需要拖动弯曲的箭头来旋转文本，如下所示：

Or, you might want to head on over to the “Format” tab on the main PowerPoint ribbon to change settings like color, transformations, and more. It’s up to you!

或者，您可能想要转到主PowerPoint功能区上的“格式”选项卡来更改颜色，变换等设置。 由你决定！

Finally, decide whether you want the watermark to appear behind everything else on the slide. To do so, click the “Send Backward” button on the “Format” tab and choose “Send to Back.”

最后，决定是否要让水印出现在幻灯片上的所有其他内容的后面。 为此，请单击“格式”选项卡上的“向后发送”按钮，然后选择“向后发送”。

Once you’ve got your text the way you want it, it’s time to exit the master slide view if that’s what you’re using. Switch over to the “View” tab and then click “Normal” to go back to the normal slideshow view.

以所需的方式获取文本后，如果您正在使用该文本，就该退出主幻灯片视图了。 切换到“视图”选项卡，然后单击“普通”以返回到普通幻灯片显示视图。

You’ll now see your watermark text on your slides.

现在，您将在幻灯片上看到水印文本。

If you inserted the text onto your master slide, any new slides you insert will have the same watermark text on them.

如果您将文本插入到主幻灯片中，则您插入的任何新幻灯片上都将具有相同的水印文本。

If you’d like to remove your watermark from PowerPoint, all you have to do is delete that text box.

如果您想从PowerPoint中删除水印，则只需删除该文本框。

Select the slide with the watermark (or head back over to the Master Slide view if that’s where you inserted the text box).

选择带有水印的幻灯片(如果您在其中插入了文本框，则返回到“主幻灯片”视图)。

Click the text box.

单击文本框。

And then hit “Delete” to get rid of it. Your slides will be watermark free!

然后点击“删除”以摆脱它。 您的幻灯片将无水印！

翻译自: https://www.howtogeek.com/396425/how-to-use-watermarks-in-powerpoint/