I used QuickTime to record my iPhone 6 device video. Format of iPhone 6 QuickTime video on desktop H.264, 750x1334. Size= 406x722. Then I import this QuickTime video into iMovie. When I export the video from iMovie back to desktop the format is now H.264, 1920x1080 and size= 1280x720.
Why does iMovie change the size? I want the size to always stay exactly the same as what I recorded on the iPhone 6 device into QuickTime NOT the size iMovie exports back to desktop.
How do I make iMovie keep the size of the original QuickTime iPhone 6 video?