虽然您不能在一个 PowerPoint 文件中使用不同大小的幻灯片，但对于实际演示文稿，您可以将多个不同的文件链接在一起以创建具有不同幻灯片大小的演示文稿.

Although you cannot use different sized slides in one PowerPoint file, for the actual presentation you can link several different files together to create a presentation that has different slide sizes.

这样做的过程如下:

1. 创建两个 Powerpoint(使用所需的幻灯片尺寸)
   • 需要正确填写它们才能拥有可链接的对象和可选择的幻灯片

• 任何不为空的幻灯片都应出现在幻灯片的超链接"对话框中

参考首次发布此解决方案的 Office 支持页面..com/en-us/article/can-i-use-portrait-and-landscape-slide-orientation-in-the-same-presentation-d8c21781-1fb6-4406-bcd6-25cfac37b5d6?ocmsassetID=HA010099556&Correelation=Correelation-bfe6-47b1-bab6-5783e78d126d&ui=en-US&rs=en-US&ad=US

Reference to Office Support Page where this solution was first posted. https://support.office.com/en-us/article/can-i-use-portrait-and-landscape-slide-orientation-in-the-same-presentation-d8c21781-1fb6-4406-bcd6-25cfac37b5d6?ocmsassetID=HA010099556&CorrelationId=1ac4e97f-bfe6-47b1-bab6-5783e78d126d&ui=en-US&rs=en-US&ad=US