How to Change the Resolution on an AVI File

AVI is a popular Windows format that is used by a variety of video-editing programs. AVI files are typically uncompressed and are rather large in terms of storage space. If you want to save the file to the Internet or another program that requires a smaller file size, you need to adjust the resolution of the AVI file so the file size is smaller. Although you can make the resolution better, the image becomes more pixelated.

Designer focusing on his work on the computer
credit: Ciaran Griffin/Lifesize/Getty Images

Step

Launch the video editor installed on your computer. Most computers come preinstalled with some sort of video editor, such as iMovie or Windows Movie Maker.

Step

Click "File," "Import" and select the AVI file from the selection window.

Step

Select the AVI file and drag it into the timeline. Once in the timeline, you can export it with a different resolution.

Step

Click "Edit," then "Export." A small export window appears in the middle of the screen.

Step

Give the file a title and select a save location in the middle of the window. Select "AVI" as your output format, then click "Options." A Video Options menu appears. In that menu, you can find a resolution editor. Select the resolution size you want. The smaller the resolution size, the smaller the size of the video.

Step

Click "OK" to apply the options, then click "Save" and the AVI file is saved.