Video Resizer: How to Resize Video with Key Frames?

Want to play 2 or more videos on one screen? You need to adjust the position and size of each video for the best combination. Try MovieMator Video Editor to change the size and position of your video easily and animate the resizing and moving effect with the key frames.

Step 1: Open MovieMator Video Editor and load the video/audio/image files

Double-click the program icon to open MovieMator Video Editor.

If you haven’t installed the latest version of MovieMator, download the Windows demo from here; the Mac demo from here.

Then click “Open” at the top left corner and select the file(s). Press “Open” to load the files to MovieMator.

Step 2: Add the target files to the timeline

Select the target file and click “Insert” button, or drag & drop the target file from your local album to append it to the track on the timeline.

Step 3: Add the “Resize” filter

Select the video and click “Add Filter” to add the “Resize” Filter to the video or directly click “Resize” in the shortcut toolbar.

Step 4: Enable animated resizing effect with key frames

Check “Enable Key Frames” if you want to add animated resizing effect. That is to switch from for one location to another during the process of resizing.

Upon checking this option, red keyframe markers will appear at the beginning and the end of the clip.

Tips: Click “+” button to add key frame to the moment; click “-” button to remove the unwanted key frame; click to jump to the previous key frame; click to jump to the next key frame.

Move the edit box in the preview panel to reposition the picture (clip). Drag the vertices at four corners to resize it in different directions. Preview the video and you’ll see the size and position change along with the time.

Bonus tips:

Size mode 1: fit the height of the screen (horizontally centered);

Size mode 2: fit the width of the screen (vertically centered);

Size mode 3: stretch to full screen.

Step 5: Export your video or save the project for further editing

You could directly export videos with any format for playing on any device. Or save the project and edit them again in your spare time if you have to break off the editing process.

Export Videos:

Click “Export Video” on the main interface, then choose your desired format and adjust output settings. When everything is OK, click “Export File” to name the file and choose the destination folder.

Save Project:

You have 2 ways to save project for further editing. One is to click “Save Project” on the main interface, the other is to click “File” menu, then click “Save” or “Save as” to name the file and choose the destination folder. By the way, if you are used to using keyboard shortcuts, you can also press “Command + S” to save the project.