Freeze last frame of video playback for homepage

[flashcutter]

I am a video editor and created a video to playback full-frame for a website I am making. There is an initial animation that resolves into a final graphic. I want the last frame of that to freeze and hold indefinitely. I have set it on autoplay but not to recycle. The problem is that at the end of the play, the video cuts to black. My edited video doesn’t cut to black. How do I make it freeze the last frame? I do not know how to code so would really appreciate someone telling me what I have to do. Thank you very much.