What is Edit ?
Edit is (verb) 1. to be in charge of a newspaper or magazine He edited the ‘Sunday Express’ for more than twenty years. 2. to change atext to make it better The editedtext is now ready. It took me two hours to edit the first chapter. 3. to get atext ready to be published I am editing a volume of 20th-century poetry. 4. to cut up a film or tape and stick it together in correct order to make it ready to be shown or played Once the film has been edited it will run for about 90 minutes.
source: Easier English, Student Dictionary Upper Intermediate Level