Tag structure
Builds a real structure tree: headings in the right order, lists, tables, figures and paragraphs. Untagged PDFs get a structure tree generated from their layout.
Section 508 · WCAG 2.1 AA · PDF/UA-1
Make your documents accessible — without doing it by hand.
Upload a Word document or PDF. EZ508 tags its structure, writes the alt text, fixes reading order, repairs tables and corrects low-contrast text — then hands back a remediated file and a compliance report showing exactly what changed.
Free to use · No credit card · .docx and .pdf up to 200 MB
Two independent checks on every file
Built-in tag viewer to inspect the result
Files deleted after 24 hours
What it fixes
The tedious, error-prone parts of a 508 review — applied consistently, on every page, in seconds rather than hours.
Alt text for images
Matches figures to their captions and surrounding text to write meaningful descriptions. Purely decorative images are marked as artifacts so screen readers skip them.
Tables
Detects header rows — including multi-row headers — sets scope, repeats headers across pages, and regularises rows so assistive technology can navigate the grid.
Colour contrast
Finds text failing the WCAG 1.4.3 contrast ratio and darkens it just enough to pass, leaving your document's design intact.
Links & navigation
Adds screen-tips describing where links go, converts bare URLs into real hyperlinks, cleans up tables of contents and sets the document language.
Verification you can see
Every job produces a compliance report plus a second opinion from an independent audit engine — and a built-in viewer that shows the tag tree overlaid on the rendered page.
How it works
Three steps, and you keep control of every option along the way.
Upload your document
Drop in one or more .docx or .pdf files, up to 200 MB each, and fill in the document properties a compliant file needs — title, author, subject.
Choose what to fix
Around thirty individual remediations, grouped and switchable. Sensible defaults are pre-selected, and every option explains what it does before you turn it on.
Review and download
Watch progress live, then download the remediated document, its tagged PDF and the compliance report — or open the tag viewer to inspect the structure page by page.
What it can't do for you
Being straight about the limits is part of doing this properly.
Automated remediation is a starting point, not a certificate of compliance. EZ508 handles the mechanical work reliably, but some things need human judgement:
- Alt text quality. Generated descriptions are drawn from captions and nearby text. Review them — only you know what the image is meant to convey.
- Scanned documents. A page that is just an image of text has no text to tag. It needs OCR before any tool can make it accessible.
- Reading order in complex layouts. Multi-column, heavily designed pages may still need manual ordering.
- Meaning. Whether a heading level reflects the document's actual structure, or a table's headers describe the right axis, is a judgement call.
Always review the output and the compliance report before you publish or certify a document.
Common questions
Section 508, PDF/UA, and what an automated tool can honestly promise.
What is Section 508 document remediation?
Section 508 of the Rehabilitation Act requires U.S. federal agencies and their contractors to make electronic documents accessible to people with disabilities. Remediation is the work of adding the structure a screen reader needs: tagged headings, alt text on images, a correct reading order, real table headers and readable contrast. EZ508 performs that work automatically on Word documents and PDFs.
Which standards does EZ508 target?
Section 508, WCAG 2.1 Level AA, and PDF/UA-1 (ISO 14289-1). Each remediated file comes back with a compliance report listing what was changed and what still needs a human decision.
What file types can I upload?
Word documents (.docx) and PDFs (.pdf), up to 200 MB per file.
Does it cost anything?
No. EZ508 is free to use and there is no credit card required.
Is automated remediation enough to certify compliance?
No, and no tool can honestly claim otherwise. EZ508 handles the mechanical work reliably, but alt-text quality, reading order in complex layouts, and whether a heading level reflects a document's real structure are judgement calls. Scanned pages have no text to tag at all and need OCR first. Always review the output and the compliance report before publishing or certifying a document.
What happens to the documents I upload?
Uploads and the files EZ508 produces are deleted automatically after 24 hours, and can be deleted immediately on download or sign-out. Do not upload classified material, or personal data you are not authorised to process on third-party infrastructure.
Can it fix a scanned PDF?
Not on its own. A page that is only an image of text contains no text to tag, so it must be run through OCR before any remediation tool — EZ508 included — can make it accessible.
Disclaimer. EZ508 is provided "as is", without warranty of any kind. It is an automated aid, not legal advice and not a guarantee that a document meets Section 508, WCAG 2.1, PDF/UA-1 or any other standard or legal obligation. Responsibility for verifying the accessibility and accuracy of any document you publish remains with you and your organisation. Do not upload classified material, or personal data you are not authorised to process on third-party infrastructure. See the Terms of Use and Privacy Notice for the full terms.
Start with your next document
Create an account and remediate your first file in a couple of minutes. Your uploads and outputs are deleted automatically after 24 hours.