怎么修改视频尺寸？

Question

原视频尺寸是3:4的（如图1），要改成1:1然后不能裁切掉原视频内容（改成图2的样子），请问一下应该用什么视频软件，怎么改？

Answer 1

修改视频尺寸大小的步骤如下：
1、现在电脑上打开快剪辑软件。
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2、导入自己所需的本地的视频。
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3、点击编辑视频，进入视频编辑界面。
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4、点击上方的裁剪工具。
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5、下面可以看到裁剪的比例，也可以自由裁剪。
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6、这里我们以4：3为例子，裁剪一下。
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7、然后导出视频即可。
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Answer 2

你要先设置视频的背景颜色为白色，然后设置项目的长宽比是1:1，最后再添加视频就可以了。

Answer 3

手机怎么裁剪视频尺寸，一看就会