How to compress video with avidemux

Written by chris hoffman Google
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Avidemux, a free, open-source video editor, can perform a variety of simple video editing tasks, including compressing videos. You can load a video into Avidemux, select a new codec and set a desired file size. Avidemux re-encodes your video into the new codec, shrinking it to the desired file size so you can fit it on a CD or other removable device, or even send it over the Internet. The compressed video file won't be as high-quality as the original video file, since it's being re-encoded.

Skill level:
Moderately Easy


  1. 1

    Open a video file in Avidemux by clicking the "File" menu and clicking "Open," then browsing to the video file on your computer and double-clicking it.

  2. 2

    Click the drop-down box reading "Copy" under Video in the sidebar and select a video codec such as "H.264" from the list.

  3. 3

    Click the "Configure" button in the Video section.

  4. 4

    Click the "Encoding Mode" drop-down box and select "Two Pass - Video Size" in the list.

  5. 5

    Type the size you want the compressed video to be in megabytes into the "Target Video Size (MB)" box.

  6. 6

    Click "OK."

  7. 7

    Click the "File" menu, point to "Save" and select "Save Video."

  8. 8

    Type a name for the compressed video file and click "Save."

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