Most people have never seen raw footage. They've seen finished videos, and they assume the editor's job is trimming the ends and adding music. Then they see a raw folder for the first time, with forty clips named C0012.MP4, and the job starts to make sense.
The easiest way to show what an editor does is to put the same footage side by side: the straight assembly (the clips in order, the obvious bad bits removed) next to the version an editor hands a client. I'm putting together pairs like that from my own footage for the work page. Until they're up, here's what changes between the two versions, and what to look for in anyone's before and after.
What an editor changes
Whatever the footage, the changes fall into the same few groups.
The order
Footage arrives in the order it was shot. Stories rarely work in that order. A recap that starts with people arriving and ends with people leaving is accurate, and it's also the most boring structure there is.
An editor finds the strongest moment and asks whether the video should start there. In an interview piece, the best line might have come forty minutes in. It can open the video.
What's left out
This is most of the job, and you can't see it in the final cut. Four hours of footage becoming six minutes means three hours and fifty-four minutes on the floor. Choosing what goes is harder than choosing what stays, because a lot of what goes is fine. It's just not the best.
The pace
How long each shot stays on screen. Cut too fast and nothing lands. Cut too slow and people scroll away. Good pacing changes inside the same video. Quicker through the setup, slower when someone says the thing that matters, a beat of silence after it.
Sound
People forgive a soft picture, but not bad sound. An editor levels voices so nobody is too quiet or too loud, cleans up hum and room noise, and picks music that supports the talking instead of fighting it. Often the biggest difference between a before and an after is the audio, even though people describe it as "it just feels more professional."
The look
Matching cameras so a cut from one angle to another doesn't change the color of someone's skin. Fixing a shot that's too dark. Giving the whole piece one consistent look. On most jobs this is basic correction, not a dramatic grade.
The words on screen
Names and titles, captions, a title card, a closing line with a link. Captions get checked by hand, because automatic ones misspell names.
The versions
One edit often becomes several files. A wide version for YouTube or a website, a vertical one for phones, a short cut for social. Each needs its own framing, because a vertical crop of a wide shot cuts people out of the frame unless someone moves it shot by shot.
What an editor can't change
It's worth being plain about this too.
An editor can't fix a missing shot. If nobody filmed the moment, it isn't there. An editor can make soft focus slightly less obvious, but can't make it sharp. Bad audio can be improved, sometimes a lot, but a voice buried under a loud band can only be rescued so far.
And an editor can't make the video about something the footage doesn't contain. If the brief is "show how much our clients love us" and there are no client interviews, the edit has nothing to say that with.
That's why the cheapest improvement to any video happens before the shoot. Decide what the video is for, and make sure someone films that.
How to read anyone's before and after
If an editor shows you a before and after, a few things are worth checking.
Is the before really raw? A "before" that's already been trimmed and graded hides most of the work. The fair comparison is the clips as they came off the camera, in order.
Is it the same footage? An after that uses shots the before didn't have isn't a comparison. It's a different video.
Is it footage like yours? A beautiful after from a big-budget shoot tells you less than a good after from footage like the files you'll be sending. Ask for an example close to your own job.
When you need an editor and when you don't
If your video is a straight recording that people watch for the information (a webinar, a walkthrough), a light trim might be all it needs. Do it yourself, or pay for an hour.
If the video has to make someone feel something, or keep watching, or understand a story in two minutes, that's where editing pays. The footage is the same either way. The difference is in the after.
More real work is on the work page. Rates are on pricing: $50 an hour, $400 a day, $1,800 a week.