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How to Resize MP4 (MPEG/MPG) Files for Smaller Size

Sometimes, you may want to resize MP4 files. For example, your MP4 files are too large to upload to YouTube for sharing. Or if you have an HD MP4 video with widescreen, it’s not suitable to play on your small-screen devices like iPhone etc. In cases like these, you have to resize your MP4 video files to fit your device best or share on YouTube.

To resize MP4 files, you need a reliable MP4 resizer for help. So here, Wondershare Video Editor (Video Editor for Mac) is recommended. It can enables you to resize your MP4 files for smaller size while maintaining relatively high visual quality. Now, let me show you how to resize MP4 videos step by step.

Powerful MP4 video resizer: Wondershare Video Editor

wondershare video editor
  • Very simple and clean interface;
  • Easily resize your MP4 video with no quality loss;
  • More stunning video effects provided;
  • Directly upload the video to YouTube or Facebook after resizing;
  • Supported OS: Windows (Windows 8 included) & Mac OS X (above 10.6).

1. Add MP4 files to the User's Album

Press "Import" button on the upper-left corner to load your local MP4 files to the album of this MP4 resizer. Or directly drag MP4 files from the computer to this app’s album. After that, transfer one MP4 file from the Album to the Timeline at bottom by a drap-and-drop.

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resize mp4 video

2. Cut off some unnecessary clips if necessary (optional)

On the Timeline, click the MP4 file to select it, put the top of the red Time Indicator to the position you want by dragging, and then hit "scissor" button to cut it. Repeat this operation again and again until you cut all of your unwanted segments into clips. At last, delete your unsatisfied clips.

Tips: To focus on your wanted video quickly and easily, you can use the "Scene Detection" feature to separate your video into different parts first. To do it, just highlight your video in the left item tray, right click it and select "Scene Detection". Then it will finishes scene separation automatically. 

resize mp4 video

3. Resize MP4 file

Press the "Create" button, click the Format tab in the pop-up output window, and then select MP4 as the output format. Besides “Advanced settings”, there is a triangle button. Just click it and you’ll see some options like video resolution, frame rate and bit rate etc.

Generally speaking, the lower resolution, frame rate, or bit rate the video is, the smaller it is. So, to resize MP4 for smaller size, you just choose a smaller video resolution, frame rate, or bit rate here.

resize mp4 video

Video tutorial: How to resize MP4 video

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people have downloaded it

Further reading:

Convert WMV to MP4: Enables you to import WMV files into iPhone, iPad, PSP etc for playback.

Decode MPEG to MP4: Help you convert mpg to mp4 with only few steps, so you can play mpg files with portable devices.

Add SRT to MP4: It can be easy to add SRT to MP4 once you get a reliable tool for help (Windows 8 included).

Download Wondershare Video Editor:

Download Win Version Download Mac Version

Product-related questions? Speak directly to our Support Team >>

lili
so helpful, thank you
Comrade_brian
I just downloaded Wondershare video editor, and it has been very easy and useful so far! Thanks for the helpful hints!

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