PDF remediation and PDF/UA accessibility

A PDF is not accessible just because the text is visible.

DEMA remediates PDFs so assistive technologies can understand the document structure: headings, paragraphs, lists, tables, images, links, language, reading order and navigation. The service can be integrated with multilingual DTP so accessible output is considered during production rather than added as an afterthought.

Accessible PDF The visual page and the semantic document must tell the same story.

A PDF can look correct and still be unusable to a screen reader if tags, reading order, headings, tables, alt text or language metadata are wrong.

Why remediation is technical

Accessibility exists underneath the visual layout.

A sighted reader can infer columns, headings and table relationships from position and design. Assistive technology needs that logic encoded explicitly. DEMA works with PDF/UA-oriented structure and accessibility checks so the semantic order matches the intended reading experience.

Structure & tags

Headings, paragraphs, lists, tables and other content need the correct semantic roles.

Reading order

The logical sequence must match the visual information flow, especially in multi-column or graphic-heavy documents.

Non-text content

Images, charts and diagrams need appropriate alternative descriptions or artifact handling.

Navigation & metadata

Language, links, bookmarks and metadata help assistive technology identify and navigate the document.

Remediation checklist

What is reviewed inside an accessible PDF.

Document structure

Build a coherent semantic hierarchy.

• Tagged headings and paragraphs
• Correct heading hierarchy
• Lists and nested lists

Tables & graphics

Make complex visual information interpretable.

• Header relationships
• Table summaries where useful
• Alt text for images and figures

Navigation

Help users move through the file.

• Meaningful links
• Bookmarks where appropriate
• Logical tab/reading order

Document settings

Support correct assistive-technology behaviour.

• Document language
• Metadata
• Security settings that do not block accessibility
Standards and EAA context

Accessibility requirements are now a live procurement and publication issue.

The European Accessibility Act has applied since 28 June 2025, so accessibility is now part of procurement and publication decisions. For PDF documents, the relevant technical framework is PDF/UA (ISO 14289) together with digital accessibility requirements such as WCAG 2.1 AA and EN 301 549, where applicable. WCAG 3.0 is still being developed and is not yet a binding requirement.

WCAG 3.0 (Web Content Accessibility Guidelines) logo, which is a set of standards and guidelines for making web content more accessible to individuals with disabilities. Second, the image includes the ISO (International Organization for Standardization) logo, which represents the international standards for document management and accessibility.

Important

DEMA can remediate and test documents against the agreed technical requirements. Whether a specific organisation or document is legally in scope depends on the applicable law, product or service and market; this information is not legal advice.

Accessibility

The four principles of accessibility.

Accessible documents rest on the same four principles as accessible websites: Perceivable, Operable, Understandable and Robust. PDF/UA and WCAG turn them into concrete technical checks for every file.

P

Perceivable

Text, images, charts and tables must be available to everyone, including people using screen readers. Alt text and correct tags make the content perceivable.

O

Operable

Readers must be able to move through the document with a keyboard or assistive technology. Bookmarks, links and a logical tab order keep navigation smooth.

U

Understandable

Content must be clear and predictable. A correct reading order, a defined document language and consistent headings help every reader follow the document.

R

Robust

The file must work reliably across PDF readers and assistive technologies. Standards-compliant tagging, as PDF/UA requires, keeps it interpretable now and in the future.

Remediation applies these principles inside the file, so the document works for every reader.

The remediation workflow

Accessibility can be integrated with localisation and DTP.

01

Audit the PDF

Identify structural, reading-order, contrast, table, image, link, form and metadata issues.

02

Repair the source or PDF structure

Where appropriate, rebuild or correct the source in Word/InDesign or remediate the PDF tags directly.

03

Add semantic information

Create headings, lists, table structures, alt text, artifacts, language settings and navigation.

04

Verify reading order and usability

Check the document with accessibility tools and review how the content is exposed to assistive technology.

05

Deliver and document

Provide the remediated file and agreed validation evidence; for multilingual projects, repeat the accessibility checks on the final target-language output.

Best fit with DTP

The cheapest place to solve accessibility is often before final export.

If a multilingual document is already being rebuilt in FrameMaker, InDesign or another DTP environment, accessibility requirements can be considered at the same time. This avoids translating first, laying out second and remediating a structurally poor PDF third.

Manuals & guides

Technical documentation can combine translation, DTP and PDF remediation in one production chain.

Financial documents

Statements, product information and reports may need both multilingual accuracy and accessible final PDFs.

Marketing & public documents

Brochures, reports and public-facing content can preserve visual design while receiving semantic structure for assistive technology.

Impact

What remediated PDFs do for your organisation.

Accessible documents are not only a compliance task. They make your content easier to use, easier to find and available to a much wider audience.

Improved user experience

Remediated PDFs are easier to read and navigate for everyone, whatever assistive technology, device or reading preferences they use.

Inclusive audience reach

According to the World Health Organization, 16% of the world’s population experiences significant disability. Accessible documents make sure your content reaches these readers too.

Better SEO performance

Tagged, well-structured PDFs with clear titles, headings and text alternatives are easier for search engines to understand, so your documents are easier to find.

Lower compliance risk

Documents remediated and tested against PDF/UA and WCAG requirements help you meet accessibility expectations in public procurement and under the European Accessibility Act.

Client voices

Long-term partners, in their own words.

Manufacturers, agencies and specialist firms across Europe rely on us for documentation that has to be right in every market.

Events and insights

Sharing our accessibility expertise with the industry.

Our team speaks at conferences, writes for industry media and runs workshops on plain language, accessibility and inclusion.

Cover of MultiLingual magazine, April 2026: Influencing the Industry, the top 20 movers and shakers in language work Article · MultiLingual magazine, April 2026

Influencing the Industry

In the April 2026 issue, Milena Spelta Parenti is featured among language industry influencers, explaining why accessible and inclusive language is about removing barriers.

Read the article โ†—
Cover of the Torino Film Industry 2025 programme, 20 to 25 November 2025 Workshop · Torino Film Festival 2025

Lo spettacolo per tutti: inclusione e innovazione sul palco e sullo schermo

Milena Spelta Parenti took part in this workshop on making theatre and film accessible to every audience, with inclusive and innovative approaches on stage and on screen.

View the programme โ†—
Opening slide of the GALA 2024 Valencia talk Plain and Easy Language: Ensuring Accessible Communication for All Conference talk · GALA 2024 Valencia

Plain and Easy Language: ensuring accessible communication for all

Milena Spelta Parenti and Jovana Maravic share how we simplify language for specific audiences, drawing on the plain and easy language projects of the Spanish company DEMA acquired in 2022.

Watch the talk โ†—
Free report

PDF remediation: make your documents accessible to everyone.

Download our free report to learn how PDF remediation works and how it helps your organisation publish documents that everyone can use.

Questions

A remediation quote depends on structure, not just page count.

Can you remediate a PDF if we do not have the source file?

Yes, but the method and effort depend on how the PDF was produced. Some files are best repaired directly; others may need partial reconstruction.

Will remediation change the visual design?

Often the visual appearance can remain substantially the same, though contrast or structural problems may require small design adjustments.

Do translated PDFs need to be checked again?

Yes. Translation and DTP can change reading order, language settings, alt text and layout relationships, so accessibility should be verified on the final target-language file.

Can you combine PDF remediation with translation?

Yes. DEMA can connect translation, DTP and remediation so accessibility is part of the output specification rather than a separate project at the end.

Send the PDF, not only the page count.

We can review how the document was built, identify the main accessibility barriers and propose whether remediation should happen in the PDF itself or upstream in the source/DTP workflow.

Talk to DEMA

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