GoLocalise
Subtitler timing European Portuguese subtitles against video in GoLocalise's London studio

Subtitling · European Portuguese

European Portuguese subtitling services

Subtitling for Portugal across corporate video, eLearning, factual, streaming and advertising, with the orthography settled before the first cue is written. Part of a wider European Portuguese service: subtitles, voice over scripts, and translation of whatever else the job needs.

Native-speaking subtitlers
SDH & closed captions
ISO 9001 & ISO 14001
Burnt-in or separate files
In-house subtitling team
Native-speaking subtitlers
SDH & closed captions
ISO 9001 & ISO 14001
Burnt-in or separate files
In-house subtitling team

About European Portuguese subtitling

An agreement that made two spellings official, not one

The Acordo Ortográfico de 1990 has been the compulsory standard in Portugal since 13 May 2015, when a six-year transition closed, and the platform style guide for European Portuguese names it as a delivery requirement in the same breath as the character count. Which is to say the spelling of a subtitle is part of the specification you are being measured against, not a matter of taste.

What it did not do was settle on one form. Where a consonant is sounded in one variety of the language and silent in another, the agreement keeps both spellings valid instead of choosing: aspecto and aspeto, sector and setor, dicção and dição are each correct under it, and the accent rules do the same for António and Antônio. A file can follow the agreement line by line and still be wrong for your house style.

So we fix the convention at the brief rather than at client review: the agreement's own forms, or the spellings your brand has held on to, applied consistently from the first cue to the last instead of drifting halfway through. A native subtitler from Portugal writes it, and a language check and a technical check run on every delivery — a subtitle file, a caption track, a timed script or a plain document, whichever the work turns out to be.

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Our in-house subtitlers working on European Portuguese files

Which do you need?

Open captions, closed captions or SDH

Three different deliverables that people often ask for by the wrong name. Here is the short version.

Open captions

Burnt in

Subtitles burnt permanently into the picture. Nobody can switch them off, which is exactly what you want for social feeds that autoplay muted — and in European Portuguese it puts the agreed spellings beyond reach of anyone editing the file downstream.

  • Always visible
  • Agreed spellings fixed in the picture
  • Delivered as a finished video file

Closed captions

Switchable

A separate file the viewer can turn on and off, and that can carry several languages at once. The standard for YouTube, Vimeo and the streaming platforms.

  • Viewer controls them
  • Multiple languages from one video
  • Indexed by search engines

SDH

Accessibility

Subtitling for the deaf and hard of hearing: dialogue plus speaker IDs and the sound effects and music cues that carry meaning.

  • Speaker identification
  • Non-dialogue audio described
  • Meets accessibility requirements

Subtitles or captions? The two terms are often used interchangeably. Strictly, subtitles translate the dialogue for viewers who can hear the audio, while captions are same-language and add speaker labels and sound cues for viewers who cannot. We produce either — translated European Portuguese subtitles or same-language European Portuguese captions and SDH — in whichever form your platform and audience require.

What we subtitle

European Portuguese subtitling, whatever the format

Work for Portugal comes from broadcasters, agencies, publishers and training teams, and a good share of it arrives with a house convention attached before we have read a line. These are the formats we see most.

Corporate & training video

Internal comms, onboarding and product training subtitled for global teams and LMS delivery.

eLearning & online courses

Timed, readable subtitles for course platforms, MOOCs and instructional video.

Documentary & factual

Festival, broadcast and streaming documentaries, including interview clean-up and on-screen text.

Advertising & social

Burnt-in captions for muted autoplay on Instagram, TikTok, YouTube and paid social.

Streaming & OTT

Platform-spec subtitle and caption files for VOD, OTT and broadcast delivery.

Accessibility (SDH & closed captions)

Same-language SDH and closed captions to meet WCAG and accessibility requirements.

Events, webinars & conferences

Recorded talks, town halls and webinars captioned for on-demand viewing.

E-commerce & product video

Short product and explainer videos captioned to lift conversion and reach.

How can we help you?

Your project manager has everything covered

One point of contact from brief to delivery, and both a linguistic and a technical check on every file.

1

Brief review

We review your video, your audience and the platform, including which orthography the delivery follows and whether your brand keeps spellings of its own.

2

Template and translation

Where needed, we create an English subtitle template first, then send it to a native European Portuguese subtitler.

3

Timing and quality checks

Subtitles are timed against the video and checked for reading speed, line length, one orthography held across the whole file, and format compliance.

4

Delivery and spelling check

Files delivered in the format you need, with the agreed forms verified through the last cue rather than assumed from the first.

Our standards

The specs we work to

Readable subtitles are a matter of measurable limits, not opinion. These are the defaults we apply to European Portuguese unless your style guide says otherwise.

42characters

Maximum per line

Same 42 in the EMEA platform guide

2lines

Maximum on screen

Low and centred in the frame

17chars/sec

Reading speed

13 on children's programmes

1second

Minimum duration

Seven seconds is the maximum

The EMEA platform guide publishes these same figures for Portuguese, and in the same document it requires the 1990 agreement by name, which is what puts orthography on the delivery spec alongside the numbers rather than in a separate conversation about style. Fitting the meaning inside the limit is still the daily work: an enclitic pronoun brings a hyphen and a syllable with it, so lines are condensed to fit and never clipped at the edge.

Try our free subtitle reading-speed (CPS) checker →

Deliverables

Professional subtitle formats

We adapt your existing translations into subtitle format or create subtitles from scratch, in European Portuguese, English or any other language. And if the project needs a timed script or a plain document instead, we deliver that too.

Standard text-based

SRTVTTSSAASSSUB

Compatible with most platforms and players.

Broadcast & professional

STLTTMLDFXPCAPPAC

For broadcasters, post houses and streaming delivery specs.

Burnt-in video

MP4MOVProRes

A finished file with the subtitles baked into the picture, spellings included.

Need a different format? Convert SRT, VTT and more with our free subtitle converter →

Where it's goingWhat we deliver
YouTube, Vimeo & LMS platformsSRT or VTT closed captions
Netflix, Amazon & broadcastIMSC, TTML or EBU-STL to platform spec
Instagram, TikTok & paid socialBurned-in captions in MP4 (open captions)
Premiere, Final Cut & DaVinci ResolveSRT / VTT that import straight into your edit

Not sure which you need? Tell us the destination platform and we deliver to its exact spec.

European Portuguese specifics

One agreement, two spellings, and the territories outside it

The agreement dropped consonants Portugal had long stopped pronouncing, so acção became ação, óptimo became ótimo and director became diretor, while the ones that are still sounded stayed put — which is why facto, contacto and erupção look exactly as they did. The reach is narrow and the visibility is not: around 1.6% of words changed in Portugal and the African countries, against roughly 0.8% in Brazilian Portuguese, and it only takes one of them on a title card.

The double spellings are what catches a delivery. Base IV of the agreement conserves or eliminates the consonant facultatively, so both forms stand as correct, and the accentuation rules keep pairs like académico and acadêmico for the same reason: the vowel is not pronounced the same way on both sides of the ocean. Portuguese publishers and broadcasters each pick a side and stay there, which is why we ask for a style sheet rather than guess.

Nor does the agreement cover every territory that signed it. As of July 2026, Angola and Mozambique remain the two CPLP members that have not ratified it, thirty-five years after signature, while Cape Verde, São Tomé and Príncipe, Timor-Leste and Guinea-Bissau have. A video heading for Luanda or Maputo is therefore a conversation about which convention the audience reads, not something we infer from a language code on a delivery sheet.

Since 2008

Subtitling & captioning

100+

Languages covered

ISO 9001 & 14001

Certified processes

24–48h

Typical turnaround

Subtitling rates

Professional European Portuguese subtitling

from £15 per minuteSee full subtitling rates →
Standard

For single videos and straightforward content where accurate, well-timed subtitles are what you need.

  • Native subtitler from Portugal
  • Your orthography, held file-wide
  • Frame-accurate timing
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Full production

For longer content and recurring projects, including transcription, SDH, burned-in subtitles and multiple output formats.

  • Everything in Standard
  • Transcription and subtitle template
  • SDH and burnt-in masters
  • Broadcast and platform specs
Get a quote

Every project is quoted individually and backed by our Price Match Promise. Send us your video for an exact, no-obligation quote.

Trusted by global brands

We have used GoLocalise on a regular basis for projects in a number of languages. The service we receive is great. The team is always friendly and professional. The voiceovers we receive are of a very high quality and the turnaround is extremely quick. We are very happy to recommend GoLocalise to other businesses.
Jo SamuelAnimator at Pixel Circus
It was a pleasure to work with David and the team at GoLocalise. David gave me lots of help and advice, guiding me through my first subtitling project. He really knows his stuff! The experience was completely pain-free. I would not hesitate to recommend GoLocalise – outstanding work at a good price.
Kerry GilliesDirector at Synergy Language Services
They're reliable, adaptive and obsessed with quality. And while you can never be 100% guaranteed of perfection, you can be sure GoLocalise will go the extra mile to get it right every time. We've worked with them now for over 5 years and we are truly thankful to have such a strong localisation partner for our business.
Lucas ColeSales and Marketing Director at Epipheo

Most common questions

Which spelling do you subtitle to, the 1990 agreement or the older one?

The agreement, unless you tell us otherwise. It has been compulsory in Portugal since 13 May 2015, when the six-year transition closed, and the platform style guides name it as a delivery requirement. Plenty of brands and publishers kept earlier forms in their own material, though. Send a style sheet or a previous file and we hold to that consistently instead, rather than letting two systems mix inside one episode.

If the agreement is compulsory, why do two spellings keep turning up?

Because it legitimised them. Where a consonant is pronounced in one variety and silent in another, Base IV conserves or eliminates it facultatively, so aspecto and aspeto, sector and setor, dicção and dição are all correct under the same rule, and the accentuation rules do the same for António and Antônio. A file can follow the agreement to the letter and still miss your house style, which is why we ask up front.

We have a house style from before the agreement. Will you keep it?

Yes, and publishers and broadcasters ask for it often. Tell us at the brief and the whole delivery follows your convention, checked end to end so the opening and the closing reel agree with each other. Retrofitting a convention onto a file that is already written is a second editorial pass and is quoted as one, so the moment it costs nothing to decide is before anyone starts typing.

Do you subtitle for Angola, Mozambique and the other Portuguese-speaking markets?

We do, and the territory changes the brief. As of July 2026, Angola and Mozambique were still the two signatories that had not ratified the agreement, while Cape Verde, São Tomé and Príncipe, Timor-Leste and Guinea-Bissau had. So rather than deduce an orthography from a language code, we ask which convention your audience and your client actually read, then apply that one across the file.

How is European Portuguese subtitling priced?

By the minute of running time, from £15. Length drives most of it, along with whether a transcript is needed first, whether you want SDH or a burnt-in master, and the number of delivery formats. Naming your orthography at the brief costs nothing; changing it once the file is written is a full editorial pass and is priced as one. Every quote is itemised and carries our Price Match Promise.

Do you caption Portuguese audio in Portuguese as well as translating into it?

Regularly. A Portuguese-language video gets captions and SDH in Portuguese, which is what accessibility work needs and what makes an autoplay feed usable with the sound off. The spelling question lands on a same-language caption just as it does on a translated one, since the words on screen are still being written down, so the convention is agreed at the same point and speaker labels follow it.

Can you work from an SRT a previous supplier delivered?

Usually. We import it, re-spot anything over the reading speed, and read it against the convention you have chosen, because older files often carry pre-agreement and post-agreement forms inside a single episode without anyone having noticed. Where a file turns out to have been written for a different market, we say so before starting. With no file at all, we work from the audio.

Which editing software are the files compatible with?

The standard set. SRT and VTT, or STL and TTML, open cleanly in Premiere Pro, DaVinci Resolve, Final Cut Pro and the web editors, delivered as UTF-8 so the accents and the cedilha survive the trip intact. For broadcast we match the delivery spec you hand us. If you would rather ship a finished picture, we burn the subtitles in and return an MP4, MOV or ProRes.

Ready to subtitle your video in European Portuguese?

Send us your video and we'll come back with an exact, itemised quote.

Professional voice over services for your audio and video productions

Voice over

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Translation

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Subtitling

  • Experienced subtitlers
  • Industry-standard software
  • Burn-in and graphic editing
  • Open and closed captions
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Transcription

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