Alto
Free PDF/UA-1 Checker & Fixer

The free tool to make your PDFs ADA compliant.

Free PDF/UA-1 conformance checking, plus fixed, ADA-compliant versions with veraPDF reports. No credit card required.

Drop a file anywhere in this box · max 50 MB · 50+ pages require confirmation

100% free — no credit card, no commitment

The real accessibility gap is in your documents.

Most ADA Title II risk sits in downloadable documents — forms, policies, reports, agendas, and public records. Untagged, out of reading order, or unreadable to screen readers. Alto fixes them at scale and gives you the evidence to show progress.

Fix Documents at Scale

Missing tags, headings, reading order, table structure, form fields, and alt text — remediated automatically. No trained accessibility staff needed.

Check Any PDF, Free

Run a free PDF/UA-1 conformance check on any document to see exactly what's failing, no account or credit card needed. Fix it with Alto when you're ready.

Built for Government & Education

Designed for state, county, and local governments, K-12 districts, and public colleges preparing for the April 2026 ADA Title II deadline.

How it Works

Audit it. Fix it. Prove it.

sample.pdf
10/100
7.1.3Content not tagged as real content
6.2.1MarkInfo missing
7.1.11No /StructTreeRoot
7.2.34Language unspecified
7.1.10DisplayDocTitle false
6 failed rules · 56 failed checks
Step One

Find high-risk documents

We scan your PDFs against WCAG 2.1 Level AA and PDF/UA standards. You see every failure before we touch anything.

Tagging content…
/StructTreeRoot
└─ /Document
├─ /H1 "Quarterly…"
├─ /P ×7
├─ /Figure /Alt="…"
└─ /Table → /TR → /TH ×3
Generating alt text · image 2 of 282%
Step Two

Fix issues automatically

AI-powered remediation handles tags, headings, reading order, tables, form fields, and alt text. Scanned pages get OCR.

veraPDF 1.28 · ua1
PASS
Compliant106/106
PDF/UA-1 · ISO 14289-1
Rules
106 / 106
Checks
2038 / 2038
Step Three

Prove compliance per file

Every file includes a veraPDF conformance report — clear evidence it meets WCAG 2.1 AA and PDF/UA standards.

Deadline

ADA Title II compliance begins April 2026.

Title II of the Americans with Disabilities Act requires state and local government digital content — including public-facing PDFs — to meet WCAG 2.1 Level AA. Large entities must comply by April 24, 2026; small entities by April 26, 2027. Start remediating now — with proof.

Everything Behind the Download Button

Fix forms, reports, agendas, and public records — at scale.

Permit forms, board packets, meeting minutes, policy documents, HR forms, student handbooks — the files residents, businesses, and students actually download. Alto remediates them automatically, including scanned and image-only PDFs that need OCR.

Alto · Alt Text Generator
/Figure · Image XObject
AI Vision · Alt Text

"A bar chart titled 'Quarterly Issue Counts' displaying five bars of varying heights, with the third quarter showing the highest count."

/Altembedded in /Figure struct element
LOGO
"A green rectangular banner displaying the company name..."
Done

Clear Evidence of Accessibility Work

Demonstrate progress to auditors, legal, and ADA coordinators.

Each remediated file includes a veraPDF conformance report showing exactly what was checked, what was fixed, and what passed. Store these alongside your documents or in a central evidence location.

Alto · Tag Tree Inspector
/StructTreeRoot
└─/Document
├─/H1"Quarterly Accessibility Report"
├─/H2"Findings and Recommendations"
├─/P×7 paragraphs
├─/Figure/Alt="A bar chart..."
├─/Figure/Alt="A green banner..."
└─/Table
├─/TR→ /TH ×3 /Scope=Column
├─/TR→ /TD ×3
├─/TR→ /TD ×3
└─/TR→ /TD ×3
24 struct elements·2 pages tagged·2 /Alt generated

No Accessibility Expertise Required

Upload your PDFs. We handle the rest.

You don't need trained accessibility staff or expensive desktop software. Upload your documents, Alto applies AI-powered tagging, structure repair, alt text generation, and font embedding — then validates the output.

veraPDF 1.28 · PDF/UA-1 Report
PASS
ISO 14289-1 Verdict
PDF/UA-1 Compliant
106
of 106 rules
cl. 7.1
4/4
General structure
cl. 7.2
1/1
Text content
cl. 7.4
3/3
Headings
cl. 7.5
2/2
Tables
cl. 7.21
1/1
Fonts
cl. 5/6
4/4
Metadata & MarkInfo
Total checks2038 / 2038 passed
Why Alto

How Alto Compares
to Other Options.

Manual in-house remediation is slow. Basic checker tools flag problems but don't fix them. Traditional vendors charge per page with weeks of turnaround. Alto remediates at scale with proof.

Manual / Other Tools

Slow at scale, uneven quality
Requires trained accessibility staff
No per-file compliance evidence
Per-page consulting or expensive seat licenses
Weeks of back-and-forth, work stops when priorities shift
Alto
AI-powered remediation at any volume
No accessibility expertise needed
veraPDF conformance report per file
Free to start — no credit card required
Compliant in seconds, not weeks
FAQ

Frequently Asked Questions.

Get Started

Make your PDFs ADA compliant — free.

Upload your public-facing PDFs and get WCAG 2.1 Level AA conformant versions with veraPDF evidence — completely free. No credit card required.

EDUCATION
STUDENT HANDBOOKS
K-12 · University
LEARN MORE
GOVERNMENT
PUBLIC NOTICES
City · County · State
LEARN MORE
FINANCE
BUDGET REPORTS
Annual · Quarterly
LEARN MORE
HEALTHCARE
PATIENT FORMS
HIPAA compliant
LEARN MORE
LEGAL
COURT FILINGS
ADA Title II
LEARN MORE
HR
POLICY MANUALS
Onboarding · Benefits
LEARN MORE
TRANSIT
ROUTE SCHEDULES
Bus · Rail · Ferry
LEARN MORE
PARKS & REC
PROGRAM GUIDES
Seasonal · Events
LEARN MORE
PLANNING
ZONING DOCUMENTS
Permits · Maps
LEARN MORE
LIBRARY
CATALOG REPORTS
Collection · Access
LEARN MORE
EDUCATION
STUDENT HANDBOOKS
K-12 · University
LEARN MORE
GOVERNMENT
PUBLIC NOTICES
City · County · State
LEARN MORE
FINANCE
BUDGET REPORTS
Annual · Quarterly
LEARN MORE
HEALTHCARE
PATIENT FORMS
HIPAA compliant
LEARN MORE
LEGAL
COURT FILINGS
ADA Title II
LEARN MORE
HR
POLICY MANUALS
Onboarding · Benefits
LEARN MORE
TRANSIT
ROUTE SCHEDULES
Bus · Rail · Ferry
LEARN MORE
PARKS & REC
PROGRAM GUIDES
Seasonal · Events
LEARN MORE
PLANNING
ZONING DOCUMENTS
Permits · Maps
LEARN MORE
LIBRARY
CATALOG REPORTS
Collection · Access
LEARN MORE