To edit a video in iphone follow the given steps
1. Tap Camera Roll or Videos. Browse until you find the video you want to edit.
2. Tap the video you want to edit.
3. Tap Edit in the top right corner.
4. To edit the video, tap and hold either end of the timeline bar. The bar will turn yellow.
5. When you’re happy with your selection, tap Trim or Done . If you changed your mind, tap Cancel.
Other iPhone Video Editing Apps
If you just recorded the video using Camera, tap the box in the lower left corner and skip to step 4.
If you want to edit a video taken earlier, tap the Photos app to launch it.
In Photos, tap the Videos album.
Tap the video you want to edit to open it.
Tap Edit in the top right corner.
A timeline bar at the bottom of the screen shows each frame of your video. Drag the small white bar at the far left to move forward and backward throughout the video. This lets you quickly get to the part of the video you want to edit.
To edit the video, tap and hold either end of the timeline bar (look for the arrows at each end of the bar).
Drag either end of the bar, which should now be yellow, to cut out the parts of the video you don’t want to save. The section of the video shown within the yellow bar is what you’ll save. You can only save continuous segments of the video. You can’t cut out a middle section and stitch together two separate parts of the video.
When you’re happy with your selection, tap Done. If you change your mind, tap Cancel.
A menu pops up offering two options: Trim Original or Save as New Clip. If you choose Trim Original, you cut from the original video and permanently delete the sections you remove. If you choose this, be sure you’re making the right decision: there’s no undoing it. The video will be gone.
For more flexibility, choose Save as New Clip. This saves the trimmed version of the video as a new file on your iPhone and leaves the original untouched. That way, you can return to it to make other edits later.
Whichever you choose, the video will be saved to your Photos app where you can view and share it.
Tap Photos to open it.
Tap the video you want to edit.
At the bottom of the screen, tap the three-dot icon in the circle.
The menu that pops up lets you pick another app, such as iMovie, that can share its features with you. Tap that app.
That app’s features appear on the screen.