ScreenFlow User Guide | Exporting — Resulting Video Size
| Screen Recordings are very large Your Screen Recording is invariably much larger than the resulting video you are going to produce. For example, if your original screen size was 1280 x 800 pixels, you are probably not going to want to create a video of that size. It would consume a lot of disk space, and if you were to post it on a website, many users would not be able to view it. Reducing the size of the resulting video You will most likely want your video to be at least 50% of the original size. The easiest way to do this is to use percentage popup in the “Dimensions:” options in the Export Dialog: Reduce the Frame Rate - Frames Per Second (FPS) If you ask the codec to generate 30 frames per second, the output will be smooth, but take up twice as much space as a 15 fps recording. You may find that a 10 fps or 15 fps recording is very acceptable for your needs. Thus changing the FPS can drastically reduce the resulting movie size. You’ll need to play with the output settings to get a feel for what FPS you prefer to use. You can reduce the FPS by pressing the “Customize” button in the Export dialog and then press “Settings” in the Video area. Most codecs offer an “FPS” or “Frame Rate” setting. Crop Canvas If you Crop the Canvas to focus on one window throughout the whole presentation, then you may drastically reduce the size of your canvas. You may still need to reduce the size of your output, but not as much. The benefit is that the output of any text will be much more legible.