A Portuguese video can now speak 33 languages. But translating is not internationalising.

Until recently, a Portuguese company wanting to test a video advert in Spain had two options. Use the original Portuguese video and accept lower relevance, or do everything again: translate the script, check it, find a Spanish voice, record, edit, approve. For France, repeat. For Germany, again.

Before the advertising budget even started, there was a small audiovisual production to pay for.

This week, Google began making a feature called Video Ads Dubbing available in Google Ads Asset Studio. It uses artificial intelligence to translate and dub existing video ads into 33 languages and locales. For now it is free for a restricted group of advertisers, and Google has not yet published full documentation on eligibility, the language list, or editing controls.

It will not be in every account tomorrow. But it says a lot about where digital advertising is heading: the cost of testing a foreign market is falling.

Why this matters particularly for Portugal

Portugal is a small market. For many Portuguese companies, growing means reaching customers abroad, whether in ecommerce, manufacturing, tourism, software or consumer brands.

The problem is that internationalising marketing has always carried high fixed costs. It was never just buying advertising, it was producing everything that advertising needs to work: video, translations, pages, creative, customer support.

Every upfront cost that AI reduces makes it easier to do the single most important thing: test before investing heavily. A small company does not need to decide today that it is entering France. It can start by asking whether there is enough demand in France to justify entering, which is a far less risky question.

Video is no longer an asset for Portugal alone

According to Google advertising planning data compiled by DataReportal, YouTube had an advertising audience of around 7.59 million people in Portugal at the end of 2025, equivalent to 81.9% of the country's internet users. Worth reading carefully: advertising reach is not the same as monthly active users. But it shows the scale of the channel.

And video is no longer only about awareness. It sits inside campaigns that take part directly in discovery and conversion. If the same video can be adapted easily to other markets, a good production earns more. It stops being an advert for Portugal and becomes a master that can serve several countries.

Google is also changing how it handles languages

A second change makes this topical, and this one is confirmed by Google itself.

At the end of September 2026, the campaign-level language setting disappears from Search and AI Max for Search campaigns. In Performance Max, it stops applying to Search inventory but continues to guide YouTube, Display, Discover and Gmail.

Instead of the advertiser saying "this campaign is for Spanish speakers", the system decides based on the language the ad and landing page are written in, and what Google knows about the languages each person reads. If ads in several languages are eligible, the system chooses which to show.

Two practical notes. This is not automatic translation: having ads and pages in each language remains the advertiser's job. And in a country with many tourists, foreign residents and emigrants, it means an English ad may reach a Portuguese person who reads English, and vice versa. Multilingual accounts are worth reviewing after the change.

Translating is not internationalising

It is tempting to hear 33 languages and conclude you can now sell in 33 countries. You cannot, and that distinction saves a lot of money.

Imagine a Portuguese store's advert perfectly dubbed into German. The campaign earns the click, and the person lands on a store in Portuguese. That is the end of it.

Or they land on a German page, but checkout does not explain shipping to Germany. Or delivery takes too long. Or the payment method people use in that market is missing. Or the returns policy is not adapted. Or support only answers in Portuguese.

The advertising did its job. The business was not ready to receive it.

What to check before publishing a dubbed version

The translation. A sentence can be correct and commercially wrong. Expressions, humour, formality and terminology change between markets. AI produces the first draft, a person who knows the market approves it.

Pronunciation. Brand names, product names, cities and technical terms are the most error-prone. A very natural voice mispronouncing your own product name does not signal innovation, it signals carelessness.

On-screen text. Dubbing the audio does not necessarily translate what is written in the video. A Spanish voice over captions saying "request your quote now" in Portuguese no longer feels local.

The offer. Price, free shipping, warranty and promotions carry different weight depending on each country's competition.

The landing page. The most important of the five. Do not send French traffic to a Portuguese page because the browser translates it. If the click is worth paying for, the page receiving it is worth preparing.

There are also things available sources do not yet clarify: whether the original voice is cloned, whether there is lip sync, and how much control exists over each translated line. Until documentation exists, assume everything needs review.

The AI label that comes with it

Since July 9, 2026, Google automatically adds an AI-generated content disclosure to the information panel of ads created with its own generative tools, which by nature includes a version dubbed in Asset Studio. Depending on local requirements, the label may also appear on the ad itself.

Google ties this to regulation in the European Union, India and New York, and warns in its documentation that using the label does not on its own guarantee compliance with applicable legal obligations. Technology made production easier. It did not remove responsibility from whoever publishes.

About the figures Google shows

The feature's promotional materials mention an 86% increase in click-through rate and a 75% reduction in cost per click. Strong numbers, and I would not treat them as benchmarks: they are results presented by Google itself, in a promotional context, with no independent evidence they will repeat in a Portuguese campaign.

The useful conclusion is humbler and sturdier: content in the customer's language deserves testing, and the test result decides whether it continues.

The test I would run for a Portuguese small business

Imagine an online store with a product that already sells well in Portugal. Rather than translating the catalogue for four markets and spending thousands before knowing whether demand exists, I would run a small experiment.

One proven product. One market, say Spain. A Spanish version of the advert, reviewed by someone from that market. A genuinely adapted landing page, with shipping and delivery times for Spain and a working checkout. Full measurement. And a fixed test budget.

And I would not judge on clicks alone. I would measure cost per qualified visit, add-to-carts, checkout starts, sales, acquisition cost and, above all, margin after shipping.

If the numbers show demand, scale up. If they do not, you learned it for a few hundred euros rather than after an internationalisation costing tens of thousands.

That is where AI earns its keep. Not by doing everything, but by making the experiment cheap.

The opportunity is not 33 languages

When a tool promises 33 languages, the natural reaction is to think about scale. I would think the other way: you only need one. The next one. The most logical market after Portugal, with the product you already know sells.

A video speaking 33 languages is impressive. Finding out which one brings customers is the business.

Frequently asked questions

Can Google Ads dub video ads automatically? Yes, through the Video Ads Dubbing feature in Asset Studio, which translates and dubs videos into 33 languages and locales. In September 2026 it is available only to some advertisers.

Is it available in Portugal? Google has not published an eligibility list by account or market. Availability has to be checked directly in each account's Asset Studio.

Do I need separate campaigns per language? This is changing. From the end of September 2026, Search campaigns match on the language of the ad and page. You still need ads and pages in each language.

Is it worth using AI to translate advertising? It cuts the initial work considerably, but any commercial translation should be reviewed. Being linguistically correct does not guarantee cultural, commercial or legal fit.

How Digito helps

We bring together the pieces an experiment in another market needs to be a real test rather than a blind bet.

We build and run paid media campaigns, including reviewing multilingual accounts after the September change. We build landing pages and adapt online stores to another market, with the right shipping, delivery times and payments. We handle production and review of video, including the on-screen text that dubbing does not solve. And we leave measurement ready so decisions are based on margin, not clicks.

And if the test shows the next market does not yet pay off, that is a useful result too, and we will say so.

If your product already sells in Portugal and you want to know where it can sell next, let's talk about it.

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