All you need to do is export iMovie to. an MP4 video file and upload it to OptiSigns.
To export iMovie to MP4:
Step 1. Launch the QuickTime and Get into the Main Interface
Open the included QuickTime software on your Mac and click the button "Share" in the toolbar, then select "Export using QuickTime".
Step 2. Export the MP4 Video Format
In the pop-up window "Save exported file as...", after entitling the exported video name and navigating to where you want to save the file, click on the "Export" option and you will find "Movie to MPEG-4" in the drop-down menu. You can also make some settings if you need to. Then hit the "Save" button and a "Share Successful" notification will appear. So your iMovie has been exported to MP4 successfully.
If you have any additional questions, concerns, or any feedback about OptiSigns, feel free to reach out to our support team at email@example.com