PDF accessibility
Convert Your PDF to Section 508 Compliance
Section 508 reviews start with the same automated checks every time. Pass them with a tagged, verified PDF — produced from your original in minutes.
Section 508 requires US federal agencies — and, through procurement, their contractors and grantees — to make electronic documents accessible, with WCAG 2.0 AA incorporated as the standard. In practice, a 508 review of a PDF starts with the machine checks: tags present, language and title set, figures carrying alt text, fonts embedded, logical structure available to assistive technology. Ceereo converts an ordinary born-digital PDF into one that passes those checks — same visible document, new accessibility layer — with the verification report a 508 coordinator wants to see.
Pixel-identical output Minutes per document Try without signing up
Last updated: August 6, 2026 · Reviewed by the Ceereo team
Free audit, no signup — your full report opens on the next page.
How it works
From upload to accessible PDF in four steps
The fastest way from an inaccessible PDF to a tagged, verified one — no tag panel, no service queue, no visual changes.
- Step 1
Upload your PDF
Drop in the PDF you need to make accessible. Your file is processed only to audit and remediate it, and is never used to train models.
- Step 2
The document is audited
Every PDF/UA and WCAG machine check runs: tags, reading order, language, title, alt text, font embedding and text integrity.
- Step 3
The structure is written in
Headings, paragraphs, lists, tables and figures are tagged in reading order, with headers and footers marked as artifacts to be skipped.
- Step 4
Download the accessible PDF
Get your own file back with a full tag structure, re-audited and pixel-compared so you can prove nothing visible changed.
In short
A 508-compliant PDF is tagged, titled, language-declared, alt-texted, and structurally navigable — WCAG 2.0 AA applied to documents. Ceereo converts born-digital PDFs to pass these machine checks in minutes, with a before/after verification report for your 508 documentation.
What does Section 508 require of a PDF?
Under the Revised 508 Standards, electronic documents must meet WCAG 2.0 AA — for PDFs that means a proper tag structure with reading order, a declared language and document title, alt text on meaningful images, and content assistive technology can access. Reviews verify these with automated checkers first; Ceereo makes a PDF pass that layer and documents it.
For vendors & grantees
508 flows downhill into your contract
It isn't just agencies: deliverables, proposals, and grant-funded publications get 508-checked at intake. A vendor who ships tagged, verified PDFs sails through intake; one who doesn't becomes a compliance ticket. The per-document fix here costs less than the meeting about the ticket.
Features
Why teams choose Ceereo
Intake-ready output
Passes the automated layer 508 reviewers run first, with the report attached.
No authoring-tool dependency
Works on the PDF you already have — no need to rebuild in Word/InDesign with perfect export settings.
Batch-friendly pricing
Per-document pricing with packs for backlog clears.
Use cases
Where Ceereo works best
Federal contractors
Deliverables and reports that must clear agency 508 intake.
Grant-funded publications
Public outputs your funding terms require to be accessible.
Agency web teams
The long tail of legacy PDFs on .gov sites.
Why not do it by hand?
Ceereo vs. doing it manually
Remediating a PDF by hand in Acrobat's tag panel takes days and rarely verifies clean the first time. Here's the difference.
Output quality
What the remediated PDF looks like
Every run produces a tagged, machine-verified PDF that is pixel-identical to your original. Here's what you get.
- Tags, reading structure, artifacts, and metadata per PDF/UA practice
- WCAG-mapped findings resolved and re-verified
- Documentation: before/after machine-check report
- Visually identical output, pixel-proven
Topic cluster
Related PDF accessibility tools
Other ways to audit and fix your PDFs for ADA, 508, and EAA compliance.
Make Your PDF ADA Compliant
ADA compliance for documents means screen-reader access. Upload your PDF, see what fails, and download a tagged, machine-verified version — visually unchanged.
compliancePDF Remediation, Without the Per-Page Invoice
Human remediation services charge $3–10 per page and take days. The machine-checkable layer — most files' actual problem — takes minutes here.
fixMake Your PDFs EAA Compliant
The European Accessibility Act has applied since June 2025 — and the documents your business publishes are part of it. Fix them in minutes, not per-page invoices.
complianceFix Your PDF's Reading Order
When a screen reader jumps from headline to footer to column three, the file's structure is wrong — not the reader. This rebuilds it.
fixTag Your Untagged PDF
"Document is not tagged" is the #1 accessibility failure. This adds the full tag layer to the PDF you already have.
fix
Frequently asked questions
Is 508 the same as WCAG?+
The Revised 508 Standards incorporate WCAG 2.0 AA for documents, so in practice a 508-conformant PDF is one meeting WCAG's document-relevant criteria — which is what the checks here verify.
Do you produce a conformance statement?+
You get the machine-check report (before and after). Formal ACR/VPAT documents are a human-review deliverable — the report slots into that process as evidence.
What about Excel or Word files?+
This tool is PDFs only; export to PDF first, then remediate here.