Video editing is the process of manipulating video by rearranging different shots and scenes in order to create a whole new output. It can be as simple as stitching together different scenes and shots with simple video transitions, and can become as complicated as adding different computer-generated imagery (CGI), audio and tying together different elements, which may take years, thousands of man-hours and millions of dollars to accomplish, as is the case with big-budget motion pictures.

Video editing is the process of putting together, cleaning up and finalizing a video for presentation or output. It is mostly used to describe post-production work, which is the work done after all of the shots and footage have been taken and all that still needs to be done is put them together in order to come up with the final output.

Video editing, however, is mostly used to refer to amateur productions and other professional yet small-scale works such as in TV stations and news networks. In contrast, for professional cinema and Hollywood productions, video editing is only a small part of post-production work.

Tasks in video editing include:

• Removing unwanted footage or editing out some scene elements
• Choosing the best shots and footage to go into the final output
• Creating the flow of the narrative by arranging and rearranging scenes
• Adding effects, filters and additional elements such as CGI.