Editing a video you have already posted to Instagram is easy and can be done quickly. To edit a video, start by going to the profile page of the account on which it was originally posted. From there, find the post containing the video and click on it to open up its details. Once opened, select “Edit” in the upper right corner of your screen. This will bring up a menu with options for trimming, cropping, rotating and adding filters or effects to your clip. When finished editing simply tap ‘Done’ at the bottom right-hand side of your screen and that’s it! Your changes are automatically saved onto your post so everyone who visits your profile will see them just as you intended them to look! Editing videos after they've been posted gives users more control over their content; allowing them to make quick adjustments without having to delete and reupload an entire clip all over again each time something needs changing.