

NINJA PDF Accelerator: Accessible PDFs and ePUBs in Minutes
The NINJA PDF Accelerator transforms standard PDFs into fully WCAG-compliant, accessible documents automatically. No days of manual remediation. No separate workflows for different formats.
One upload. Accessible PDF and reflowable ePUB3 delivered simultaneously.
THE COMPLIANCE CASE
Accessible PDFs Are Now a Legal Requirement
ADA Title II: The compliance deadline has been extended to April 26, 2027, for larger public institutions, and April 26, 2028, for smaller jurisdictions and special districts. Publishers must meet WCAG 2.1 AA standards to remain eligible for institutional procurement contracts.
EAA - In force since June 2025: Noncompliant digital products face fines, legal action, and removal from EU platforms.
Publishers relying on standard PDFs now face a growing remediation backlog with every new title. The NINJA PDF Accelerator makes accessible output the default, not the exception.
HOW IT WORKS
Four Steps to Fully Compliant Documents
1. Upload
Drag and drop any document: scanned, digital, financial, or complex layouts.
2. AI Analyse and Tag
NINJA’s AI identifies structures (headings, tables, images, maths) and applies the correct accessibility tags automatically.
3. Review and Edit
Fine-tune with a built-in editor that gives you full control over reading order, alt text, and complex elements before finalisation.
4. Deploy
Export your compliant PDF and ePUB with a validation report confirming conformance with applicable standards.
KEY BENEFITS
What Makes NINJA PDF Accelerator Different
Automatic WCAG 2.1 AA Compliance
Structural tagging, reading order, heading hierarchy, and colour contrast are applied automatically. No manual tagging required for standard documents.
Dual Output from a Single Source
One upload produces a compliant accessible PDF and a reflowable ePUB3 simultaneously. Two deliverables, one process, half the effort.
AI-Powered Alt Text
Images are processed through NINJA’s context-aware alt text engine. A human review queue lets specialists approve or refine descriptions before they are applied.
Precision and Control
AI handles the heavy lifting. The built-in editor gives you Acrobat-level control to fine-tune reading orders and complex tables, ensuring accuracy on even the most technical documents.
Backlist Remediation at Volume
Batch processing handles large archives systematically. Whether you have ten documents or ten thousand legacy titles, NINJA processes them with consistent quality at scale.
STANDARDS COVERED
One Workflow, Every Standard
WCAG 2.1 Level AA
Mandated under ADA Title II and the EAA
PDF/UA (ISO 14289)
ISO standard for universally accessible PDFs
Section 508
US federal standard for electronic and information technology
European Accessibility Act (EAA)
In force across EU markets since June 2025
EPUB Accessibility 1.0
For simultaneous ePUB outputs
WHO IS IT FOR
Tailored Accessibility for Every Sector
Government and Public Sector
Federal, state, and local agencies must make information accessible to all citizens. NINJA helps meet Section 508 and ADA Title II requirements for high-volume public documents quickly and at scale.
Financial Services and Banking
Automate accessibility for statements, annual reports, and insurance policies. Meet WCAG 2.2 AA standards while reducing litigation risk and improving the experience for all customers.
Healthcare and Medical
Patient intake forms, medical records, and health plan summaries are converted into accessible formats. Supports compliance with Section 1557 of the ACA for federally funded providers.
Education and Academia
Convert textbooks, syllabi, and research papers into PDF/UA and accessible ePUBs. Supports Universal Design for Learning and keeps institutions compliant with ADA and Section 504.
Legal and Professional Services
NINJA handles complex legal citations and dense structured documents with accuracy, ensuring court filings, contracts, and evidence sets are fully accessible for all users.
Publishing and Media
Modernise your backlist by converting legacy PDFs into accessible ePUBs and compliant digital books. Meet EAA requirements and expand your reach to millions of readers with print disabilities.
ACCESSIBILITY CONFORMANCE SERVICES
NINJA Accessibility Conformance Services for Web Platforms and LMS
S4Carlisle helps publishers, institutions, and edtech vendors demonstrate accessibility conformance for their digital properties, with a focus on Learning Management Systems and digital courseware. Our services cover hybrid audits, VPAT 2.5, ACR documentation, and WCAG 2.2 AA conformance.
Our Hybrid Methodology
Automated: axe-core plus, our multi-tier engine, checks every page and interaction against all WCAG 2.2 Level A and AA success criteria.
Manual: experienced specialists verify what automation cannot catch, including meaningful sequence; caption quality; and screen-reader behaviour on NVDA, JAWS, and VoiceOver.
Interaction testing: login, navigation, forms, quizzes, and media are exercised via keyboard, screen reader, and mouse paths.
Deliverables
1. Detailed Audit Report (Excel): findings mapped to WCAG, with element identification, fix guidance, and owner routing
2. Accessibility Conformance Report (ACR): ready for procurement and Section 508 disclosures
3. VPAT 2.5 (WCAG 2.2 AA): per-criterion conformance in the current ITI template
4. Remediation guidance: prioritised fixes with re-audit available on request
Engagement Models
Single platform audit. Per-title courseware audits. Ongoing monitoring with release-diff reviews. Vendor VPAT authoring. We work with you to find the model that fits your programme and budget.
KEY OUTCOMES
What to Expect
01
Minutes, not days
accessible PDFs produced automatically, without manual remediation for standard documents.
02
Two outputs from one source
accessible PDF and reflowable ePUB3 delivered simultaneously.
03
Procurement-ready compliance
validation reports confirm WCAG 2.1 AA conformance, supporting VPAT/ACR documentation.
04
Any volume, consistent quality
from a single title to a full backlist program.