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Publishing Your ScreenFlow Project
Exporting Your Video
Video File Size Considerations
Video files often become very large, making them difficult to send to others, download,
or post to servers via the Internet.
The frame size of video clips in your project is typically much larger than the screen size
of the video file you are exporting. For example, if your original screen size is 1280 x 800
pixels, you probably do not want to create a video of the same frame size. This is
essentially HD video, and is about four times larger than a 640 x 400 video.
Reducing Video File Size
To preserve the aspect ratio of your project, use the Scale by Dimensions option as
opposed to Scale to a custom size. For general purposes, you may want to scale by 50%.
Reducing the Frame Rate
The NTSC video standard frame rate is 30 FPS. This is the standard for videos produced
in North America. However, this standard is based on creating a smooth representation
of video motion captured in the real world and may not be necessary for your project.
For example, if you specify 30 frames per second, the output will be smooth, but the file
will be about twice as large as a 15 fps video file. You may find that a 10 fps or 15 fps
encoding is very acceptable for your audience. Reducing the frame rate can drastically
reduce the size of the video file.
You should experiment with codec settings to get a sense for what size and frame rate
works best for you.
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