For years, iPhone users needed to download a third-party video editor app to rotate videos. With the launch of iOS 13, users can fix the orientation of videos from the built-in Photos app. Here’s how.

多年以来，iPhone用户需要下载第三方视频编辑器应用程序来旋转视频。 随着iOS 13的发布，用户可以通过内置的“照片”应用程序固定视频的方向。 这是如何做。

Start by opening the “Photos” app on your iPhone. If you can’t find the icon, swipe down on the home screen and use Spotlight search to find the app.

首先打开iPhone上的“照片”应用。 如果找不到该图标，请在主屏幕上向下滑动，然后使用Spotlight搜索来找到该应用。

Scroll down to the “Media types” section and tap on “Videos.” Alternatively, you can select the “Recents” album.

向下滚动到“媒体类型”部分，然后点击“视频”。 或者，您可以选择“最近的”专辑。

Locate the video that you want to rotate. Tap on the file to view the expanded video.

找到您要旋转的视频。 点击文件以查看展开的视频。

Select the “Edit” button found in the top-right corner of the display.

选择显示屏右上角的“编辑”按钮。

Tap on the crop button in the bottom toolbar. The icon looks like two right angles intersecting each other.

点击底部工具栏中的裁剪按钮。 该图标看起来像两个相交的直角。

Select the rotate button found in the top-right of the display. Each time you tap it, the video will rotate 90 degrees to the right.

选择显示屏右上方的旋转按钮。 每次点击它，视频都会向右旋转90度。

When you’re done rotating the video to the desired orientation, select “Done.”

将视频旋转到所需的方向后，请选择“完成”。

The rotated video on your iPhone will be saved in the correct orientation. You can now share the video with friends and family without having to install a third-party app.

iPhone上旋转的视频将以正确的方向保存。 现在，您无需安装第三方应用即可与亲朋好友共享视频。

翻译自: https://www.howtogeek.com/439901/how-to-rotate-iphone-videos-without-installing-an-app/