How to rotate an MP4 video

Written by marshal m. rosenthal
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How to rotate an MP4 video
(Jochen Sand/Photodisc/Getty Images)

The advent of cell phones being used as camcorders has led to videos being shot vertically and not horizontally as they should be. Rotating the video clip so that it looks normal can be done using video-editing software on a computer once the MP4 video file from the cellphone has been transferred to the computer’s hard drive. Restoring the MP4 video to its normal appearance by rotating it will not cause the video to look unnatural. It will also not harm the original video file in any way.

Skill level:

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Things you need

  • Computer
  • Web browser
  • Internet access

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  1. 1

    Download and install a video-editing program to the computer's hard drive, such as QuickTime Pro, which works on both Macs and PCs (see the link in Resources). Restart the PC after the installation has been completed.

  2. 2

    Run the video-editing program. Drag the MP4 video file that was copied from the cellphone to the computer's hard drive into the icon of the video editing program -- this can be on the desktop of the computer or in the Dock to the left of the screen or at the bottom of the screen.

  3. 3

    Go to the "Windows" menu and select "Show Movie Properties" from the drop-down menu. Click on the "Video track" column in the window that appears. Click on the "Visual Settings" tab that is below the "Video track" column.

  4. 4

    Click on the circular arrow's icon at the lower part of the window. Continue clicking on the circular arrow's icon until the video being seen in a small video box to the right of the icon is horizontal. Click on the small red button at the upper left to close the window.

  5. 5

    Go to "File" and select "Save As" from the drop-down menu. Name the video clip "Horizontally fixed" in the open column at the top of the window that has appeared. Click on the "Save" button at the bottom of the window to save the rotated MP4 file to the computer's hard drive. Quit the video editing program and archive or delete the original MP4 file.

Tips and warnings

  • You can also scale the size of the video clip to make it larger or smaller when you're done rotating it.
  • Saving the rotated M4 video with the same name as the original will overwrite the original.

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