Translation for Accessibility: WCAG, Audio Description and Inclusive Content¶

A client sends you a brief: “We need the website translated into 6 languages, but also add alt texts for all images, video subtitles, audio description, and rewrite everything in plain language at B2 level.” You look at this and realize - this isn’t just translation. It’s accessibility translation, and if you haven’t come across this term yet, now’s the time to get familiar - because as of June 28, 2025, the European Accessibility Act made this niche mandatory for thousands of companies across the EU.

The digital accessibility market is valued at $1.42 billion in 2025 and growing at 8.6% annually. For translators and agencies, this is a new specialization with specific skills, higher rates, and steady demand.

What Accessibility Translation Is and How It Differs from Standard Translation¶

Accessibility translation is adapting content so that it’s understandable and usable by people with different disabilities: visual impairments, hearing loss, cognitive differences, motor limitations. It’s not just translating text from one language to another - it’s translating with awareness of how that text will be consumed through a screen reader, subtitles, audio description, or Leichte Sprache (easy-to-read language).

A standard translator takes text and translates it. An accessibility translator takes text and thinks: “Will a person who can’t see the images understand this? Can someone with cognitive difficulties read this sentence? Will a screen reader pronounce this abbreviation correctly in another language?”

As Argos Multilingual notes:

Language plays a pivotal role in EAA compliance. Every piece of customer-facing communication must be “understandable” - and no more complex than B2-level on the Common European Framework of Reference for Languages.

In plain terms: any text the end user sees must be written in clear language at the upper-intermediate level. Not legal jargon, not marketing fluff, but language that someone with average education can understand on the first read.

Core Components of Accessibility Translation¶

• Alt texts for images - not just “office photo,” but descriptive text that conveys the meaning of an image for people using screen readers
• Subtitles and SDH (Subtitles for the Deaf and Hard of Hearing) - include not only dialogue but also descriptions of sounds, music, and tone of voice
• Audio description - voice narration describing visual elements of video for people with visual impairments
• Plain language / Easy Read - simplifying text to a level understandable by people with cognitive limitations
• Sign language (video translation) - interpreting content into the sign language of a specific country

WCAG and Multilingual Content: What Translators Need to Know¶

WCAG (Web Content Accessibility Guidelines) is the international standard for web content accessibility, developed by W3C. It has three conformance levels: A (minimum), AA (standard for most regulations), and AAA (maximum).

Several specific WCAG criteria are critical for translators:

WCAG 3.1.1 - Language of Page (Level A)¶

Every web page must have its language programmatically defined through the lang attribute. If you’re translating a site from English to German, it’s not enough to just translate the text - you need to make sure the HTML attribute changes from lang="en" to lang="de". Without this, a screen reader will read German words with English pronunciation, and a visually impaired user won’t understand a thing.

WCAG 3.1.2 - Language of Parts (Level AA)¶

If the text contains passages in another language (say, a French term in an English article), each such passage must be tagged with the appropriate language attribute. The translator should understand this requirement and either flag these spots in the translation or notify the developer.

Alt Texts as Part of Translation¶

As Content Quality UK explains:

Translated alt text helps users using screen readers understand visuals in their own language. If your English video has closed captions, then your French, Spanish, or Mandarin versions should too.

A common mistake: the main page text gets translated, but image alt texts stay in English. For a screen reader, this is a disaster - right in the middle of German text, an English image description suddenly appears.

What This Means for Translators in Practice¶

European Accessibility Act: Why This Matters Right Now¶

The European Accessibility Act (EAA) is EU Directive 2019/882, which became enforceable on June 28, 2025. It requires digital products and services sold on the EU market to be accessible to people with disabilities.

This covers: - Banking services and ATMs - E-commerce websites and mobile apps - E-books and e-readers - Computers, smartphones, self-service terminals - Transport services (tickets, check-in) - Audiovisual media content

As Nimdzi analyzes:

Language service providers will play a critical role in ensuring that content is accessible across multiple languages and formats. This includes producing accessible translations, subtitles, audio descriptions, SDH services, and sign language interpretations.

For translation agencies and freelancers, this is a direct signal: EU companies are now actively seeking specialists who can not just translate content but make it accessible. Penalties for EAA violations vary by country, but they’re real - and companies know it.

Multilingualism and the EAA¶

The EAA doesn’t specify a language list, but it requires content to be accessible in the languages of the markets a company serves. If an online store sells in Germany, France, and Spain, content must be accessible in German, French, and Spanish. Not just translated, but translated with all accessibility requirements in mind.

As 3Play Media notes, the EAA prioritizes the language of audio output: if a video is dubbed into Italian, subtitles and audio description must be in Italian, not the source language.

Audio Description: A Separate Specialization with High Demand¶

Audio description (AD) is voice narration describing visual elements of video for people with visual impairments. Between dialogue lines, comments are inserted describing on-screen actions, facial expressions, locations, on-screen text - everything the viewer sees but doesn’t hear.

The audio description market is valued at $1.32 billion in 2024 and growing at 9.4% annually. It’s one of the fastest-growing niches in media translation.

Why Audio Description Is Translation Work¶

Audio description isn’t simply “describe what you see.” It’s translating visual information into text form while considering: - Timecodes - descriptions must fit into pauses between dialogue - Priorities - what to describe first when pauses are short - Neutrality - describe facts, don’t interpret (“the man smiles,” not “the man looks happy”) - Cultural adaptation - cultural references may need explanation for different audiences

Rates for audio description are around $17.50 per minute of finished content, significantly higher than standard subtitling rates. For a translator creating audio description in another language (translating existing AD or creating new AD for dubbed content), rates can be even higher.

Where to Find Audio Description Work¶

• Streaming platforms (Netflix, Amazon, Disney+ constantly expand their AD libraries)
• Museums and galleries (audio guides for visually impaired visitors)
• Educational platforms (online courses must be accessible)
• Corporate video (training, presentations, marketing videos)
• Government agencies (EAA and national laws require AD for public content)

Leichte Sprache and Easy Read: Translation for Cognitive Accessibility¶

Leichte Sprache (easy language) is a set of rules for creating texts understandable by people with cognitive disabilities, limited language proficiency, or reading difficulties. In Germany, it’s a distinct specialization with its own certification.

Netzwerk Leichte Sprache e.V. sets the standards for this niche. The key rule: every text must be reviewed by at least two people with cognitive disabilities - only they can assess whether a text is truly understandable.

Leichte Sprache Rules¶

• Short sentences (one idea per sentence)
• Simple words (no abbreviations, foreign words, or metaphors)
• Active voice (“the bank opens an account,” not “an account is opened by the bank”)
• Large font and generous line spacing
• Every complex concept explained
• Illustrations supporting the text

Einfache Sprache vs Leichte Sprache¶

Germany has two levels of simplified language:

Similar concepts exist in other countries: Easy Read in the UK, Facile à lire et à comprendre (FALC) in France, Lectura fácil in Spain. Each country has its own rules and standards, but the principle is the same: make text as understandable as possible.

How to Become a Leichte Sprache Translator¶

Training typically takes several months across multiple modules. Universität Hildesheim offers a certified program, and there are also courses from CABkom and regional providers.

Requirements: excellent German skills, the ability to write simply and in a structured way, and understanding of the target audience’s needs. This isn’t “dumbing down” text - it’s a full translation from standard language into Leichte Sprache, and it’s harder than it sounds.

Sign Language: The Translation You Don’t See in Text¶

Sign language translation is a separate and highly sought-after specialization. In the US alone, around 500,000 deaf people use ASL as their primary language, yet there are only about 10,000 certified ASL interpreters - a ratio of 50:1.

The key point: sign language is NOT a visual version of spoken language. American Sign Language (ASL), British Sign Language (BSL), German Sign Language (DGS) - these are separate languages with their own grammar, syntax, and culture. A translator from English to ASL is exactly that - a translator, not “someone who shows words with their hands.”

Freelancers in this niche earn $40-80 per hour in the US, and demand is growing 24% faster than the labor market average. The EAA is further driving demand in Europe - video content on major corporate websites now needs sign language versions.

Skills and Tools for Accessibility Translators¶

Accessibility translation demands a skill set that goes beyond standard translation.

Essential Knowledge¶

• WCAG 2.1/2.2 - at least Level AA. You don’t need to memorize every criterion, but you need to understand the principles: perceivable, operable, understandable, robust
• Language attributes in HTML - understanding why lang, hreflang, dir (for RTL languages) matter
• Screen readers - try NVDA or VoiceOver at least once to understand how a visually impaired user experiences content
• Plain language principles - the ability to write simply without sacrificing accuracy

Useful Tools¶

How to Position Yourself¶

If you’re a freelancer, add accessibility translation as a separate service on ProZ, TranslatorsCafe, and in your portfolio. Be specific: “WCAG-compliant translation,” “audio description,” “plain language / Easy Read,” “alt text localization.” Agencies looking for these specialists will find you more easily.

For agencies, this is a chance to add a premium service to your existing portfolio. A client ordering a website translation into 6 languages now needs an accessible version - and that’s a separate budget, separate scope of work, separate price.

Market and Outlook: Why You Should Get In Now¶

Several factors make accessibility translation a promising niche right now:

1. Regulatory pressure - EAA in the EU, ADA in the US, EN 301 549 as a technical standard. Companies are required to make content accessible, and penalties for non-compliance are real
2. Market growth - the digital accessibility market grows at 8.6% annually and will reach $3.24 billion by 2034
3. Low competition - few translators have accessibility expertise. You can claim this niche before it goes mainstream
4. Higher rates - specialized services (audio description, Leichte Sprache, SDH) pay 30-50% more than standard translation
5. Stable demand - this isn’t a trend, it’s a regulatory requirement. Companies can’t “change their mind” about making content accessible

The language services market overall is valued at $78 billion in 2024 and growing to $131 billion by 2033. The accessibility segment is one of the fastest-growing within that market.

Common Mistakes and How to Avoid Them¶

“Accessibility is the developers’ job, not the translators’”¶

No. Developers set up the technical infrastructure (HTML attributes, ARIA roles), but content is created and translated by - the translator. Alt texts, subtitles, plain language versions - that’s all content work.

“Machine translation + post-editing is enough for accessibility”¶

For alt texts and plain language - absolutely not. MT often generates complex constructions, and a post-editor might not notice that a sentence has become too long or uses passive voice. For subtitles, MT can work as a first step, but needs serious human review of timecodes and readability.

“Alt text is just describing an image in 3 words”¶

No. Good alt text conveys the image’s function in the context of the page. “Chart showing company revenue growth of 23% in 2025” - that’s useful alt text. “Chart” - not so much. For decorative images, alt should be empty (alt="") so screen readers skip them.

“Leichte Sprache is for children”¶

Leichte Sprache was developed for adults with cognitive disabilities. The tone should be respectful and adult, not “childish.” The language is simplified, not the attitude toward the reader.

FAQ¶

What is WCAG and why should translators know about it?¶

WCAG stands for Web Content Accessibility Guidelines - the international standard for digital content accessibility. Translators should know at least the basic requirements (Level AA) because clients increasingly demand WCAG-compliant translation, especially since the European Accessibility Act took effect in June 2025.

How much does accessibility translation pay?¶

Rates depend on the service type. Standard translation with accessibility requirements (alt texts, language attributes, readability checks) pays 20-30% above standard rates. Audio description runs about $17.50 per minute. Leichte Sprache / Easy Read pays 30-50% above standard translation. Sign language interpretation goes for $40-80 per hour.

Is certification required for accessibility translation?¶

For most accessibility translation services, no separate certification exists. Exceptions are Leichte Sprache in Germany (certification from Universität Hildesheim or Netzwerk Leichte Sprache e.V.) and sign language (RID certification in the US, corresponding national certifications in Europe). For WCAG content review, an IAAP (International Association of Accessibility Professionals) certificate is useful but not required.

Which languages are most in demand for accessibility translation?¶

Demand is highest for EU market languages (German, French, Spanish, Italian, Dutch, Portuguese) due to the EAA, plus English (ADA and Section 508 in the US). For rare languages, demand is lower but competition is minimal - making it an interesting niche for translators with less common language pairs.

Will AI replace accessibility translators?¶

AI already helps with some tasks: auto-generating alt texts, automatic subtitling, text simplification. But the quality isn’t sufficient for WCAG AA compliance yet. AI-generated alt texts often describe images literally without considering page context. Subtitles need manual timecode review. Leichte Sprache requires review by people with cognitive disabilities - that can’t be automated. AI is a tool, not a replacement.