Here's how to crop a video from an Android or iOS phone:
On Android:
Download and install a video editing application on your Android smartphone. There are many options available, such as Adobe Premiere Rush, Kinemaster, FilmoraGo and so on. Choose the one that best suits your needs.
2. Open the video editing application and import the video you wish to crop from your phone's gallery.
3. In the application, find the cropping option. It may be represented by a scissors icon, or an option to change the size of the video.
4. Select the video and use the crop handles to adjust the area you wish to keep. You can move and resize the cropping area by dragging the handles.
5. Preview the cropped video to make sure the result matches your expectations.
6. Once you're happy with the crop, save the cropped video to your gallery or video editing application.
On iOS (iPhone/iPad) :
1. Open the Photos application on your iPhone or iPad.
2. Find the video you wish to crop in the "Videos" tab.
3. Press "Edit" at the top right of the screen.
At the bottom of the screen, you'll see a square icon with arrows. Press it to access the cropping tool.
4. Use the crop handles to adjust the area you wish to keep. You can move and resize the cropping area by dragging the handles.
5. Preview the cropped video to make sure the result matches your expectations.
6. Once you're happy with the crop, press "Done" to save the cropped video.
The cropped video will be saved to your gallery, where you can share it or use it as you wish.
These steps may vary slightly depending on the specific video editing application you're using on Android or iOS. Be sure to follow the instructions of the application you choose to crop your video accurately.