These are the steps to crop your Snapchat video to edit the length of the video you created.
1. Create you Snapchat video.
2. Your Snapchat video clip preview will appear on screen. Select your clip to reveal the cropping tool.
3. Drag the crop sliders to crop your video. When you are done, click the share arrow to share your cropped Snapchat video to your story or with your friends.