Google Ads Can Recut Your Film Without Asking — and the Box That Lets It Is Already Ticked

There is a reasonable chance that the video ad running in your Google Ads account this week is a version you have never watched. Not a version you approved and forgot — one that was generated after you signed off, in an aspect ratio you didn't request, possibly shorter than the cut you paid for, and it is being shown to real people right now.

This isn't a glitch or a rumour. It's a feature, it's documented, and the setting that switches it on was already switched on before you arrived.

What Google's own documentation says — including the part that's on by default

Google Ads calls it video enhancements. From Google's own help page (Google Ads Help, About video enhancements), the feature can take the video ad you supplied and automatically produce additional versions of it: different aspect ratios (a vertical or square cut generated from your horizontal master, and the reverse), shorter versions, and — for accounts and assets in English — AI voice-over versions. Those additional versions run automatically once they pass an automated quality review.

Here is the sentence that matters, and it's the one the documentation states plainly: these options are turned on by default — in Google's own words, they're on by default but you can turn them off anytime. You do not switch this on. It is on. To stop it you have to go in and untick it — which means the decision most advertisers have made about it is the one nobody makes on purpose: the decision by not looking.

What the documentation doesn't say — and can't

The page tells you that your film can be reframed. It does not tell you how, and that gap is the whole problem.

When the machine crops your widescreen film to vertical, something has to decide what stays in the tall, narrow window and what falls outside it. In a two-person interview, which face does it keep? Does the logo you placed in the bottom corner survive, or does the crop walk straight off it? What happens to the lower-third with the speaker's name, or the line of on-screen text you paid a designer to set? The documentation doesn't publish that logic, there's no dial for it, and it doesn't promise you a preview.

So there is exactly one way to know what your film looks like after the system has had its way with it: pull up the generated version and watch it. Most advertisers never do — not because they're careless, but because they don't know a second version exists to be watched.

Which films survive an automatic crop — and which ones break

This is the part a media manager can't tell you and a production studio can, because it's decided at the shoot, not in the ad account. It comes down to plain composition: whether the thing that matters was framed loosely enough to survive losing its edges.

A film survives an automatic crop when it was, by luck or by design, composed loosely enough to lose its edges:

• a single subject held near the centre, with headroom and side-room to spare
• nothing load-bearing at the edges — no key action, no product, no text living in the outer margins
• no words baked into the picture that a crop can slice in half

A film breaks when it was composed for its width, which most good horizontal film is:

• a wide two-shot — crop it to vertical and you either lose a person or split the frame awkwardly between them
• a landscape establishing shot, or a product that's simply wider than it is tall — there is no tall window inside that frame that still shows the whole thing
• a logo parked in a corner and subtitles or lower-thirds sitting near the edge — the first thing a 9:16 crop does is trim the sides, and that's exactly where those elements live

The uncomfortable truth underneath all of it: auto-reframe doesn't recompose your film. It takes a window out of the frame you already shot. If the thing that matters isn't inside that window, it's gone — and nobody signed off on the version where it's gone.

There's a length question hiding in here too, because a vertical cut often wants to be a different length, not just a different shape — but that's a decision in its own right, and we've taken it up separately rather than crammed it in here.

When to turn it off and give it a real vertical instead

Auto-crop is a convenience. It is not a substitute for a version made on purpose, and there are films where the right move is to untick the box and commission the vertical properly:

• Brand and trust-layer work. The flagship film, the founder on camera, the piece someone watches while deciding whether you're serious — this is the content where "assembled automatically" reads through, and it's the last place to hand the framing to a machine.
• Anything with text or graphics inside the picture. A crop can cut a lower-third in half or push your end-card URL off the screen. Reflowing on-screen text for a new shape is a human job, not an automatic one.
• A subject that's horizontal by nature — a vehicle, a building, a wide product line-up. No crop turns a horizontal thing vertical without amputating part of it. Either you shoot it for vertical deliberately, or you don't run it vertical.

The same line applies to the AI voice-over. Used as an efficiency layer it can be genuinely useful; used on the content that has to earn belief, a synthetic voice works against the very thing the film is there to do. That's the same boundary we draw around AI on client work generally — efficiency, yes; the trust layer, no.

One practical thing to settle if you do commission a proper vertical: ask your production studio up front whether that native vertical is part of the original scope or a separate deliverable. Either answer is legitimate — you just want it agreed before the shoot rather than discovered on the invoice.

Three things to do this week — in your account, not in a meeting

1. Open the campaign and find the video enhancement settings. Look at whether the aspect-ratio, shorter-version and AI-voice options are ticked. You're not changing anything yet — you're just finding out what's currently switched on in your name.
2. Pull up every auto-generated version that's actually serving, and watch each one end to end — on a phone, as an ad, not as a file review. You're checking one thing: is the thing that matters still inside the frame, and does the film still say what you paid for it to say?
3. Then decide, per film and per placement. Leave it on where the film was built to survive it — that's free reach and a fair call. Turn it off where it isn't, and brief a real vertical. Both are legitimate. The only indefensible position is not knowing which version is running.

Not an argument against automation

To be fair in both directions: video enhancements aren't a scam, and turning everything off isn't the sophisticated move. For a film that was composed to survive a crop, the extra aspect ratios are free distribution you'd otherwise pay to produce. The problem was never that the feature exists.

The problem is that it's on by default and invisible, so for most advertisers the decision gets made the worst possible way — by nobody, because nobody looked. Look once, watch the versions, and decide per film, and it stops being something happening to your work and becomes something you chose. That's the whole difference, and it costs you one afternoon in the account.

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