Competitive Landscape
The only platform that checks more and costs less
14 automated accessibility checks. AI-powered remediation from $0.30/page. Every competitor either charges 10x more, checks half as much, or requires a human to do the work manually.
CASO Comply is an AI-powered PDF accessibility remediation platform that automates document tagging, alt text generation, reading order correction, and compliance validation at $0.30 per page. This page compares CASO Comply to the four most common PDF remediation tools in the market: CommonLook (by Allyant), Equidox, codemantra, and Continual Engine PREP. The comparison covers platform approach, pricing model, automation capabilities, compliance checks, validation methods, and deployment options. All data is sourced from published product documentation, public pricing where available, and hands-on analysis — last updated April 2026.
14
Automated Checks
All run automatically on every PDF
$0.30
Per Page
Published pricing — no sales call needed
90%+
Automation Rate
LLM + Vision AI remediation
Seconds
Time to Results
Free scan — no install, no signup
No one else lets you test instantly
Every competitor makes you fill out forms, download software, install plugins, or schedule a demo before you see a single result.
CASO Comply
Instant web-based scan
- 1Enter your website URL
- 2We crawl and find your PDFs automatically
- 3Get a compliance score in under 60 seconds
No signup. No credit card. No install. Works on any device.
Everyone else
Multi-step gauntlet
CommonLook “Free” Validator
Fill out 6-field form → download installer → requires Windows + Adobe Acrobat Pro → install plugin → open each PDF one at a time
Equidox
“Schedule a discovery call” → sales demo → concurrent-user license purchase
codemantra
“Request a quote” → weeks of enterprise onboarding → 7-day trial (with training)
Continual Engine PREP
“Request a quote” → platform licence negotiation → setup and configuration
Feature-by-feature comparison
Real data. No marketing fluff. Based on published product capabilities, public pricing, and hands-on analysis of competitor software.
Swipe to compare →
| Metric | CASO Comply | CommonLook | Equidox | codemantra | Continual |
|---|---|---|---|---|---|
| Approach | AI-powered (LLM + Vision) | AI-assisted, human-driven | AI-assisted (Smart Zones) | ML auto-tagging | AI/ML + computer vision |
| Platform | Cloud + Docker | Browser + desktop | Cloud SaaS or on-prem | Cloud (AWS) | Cloud (on-prem available) |
| Free instant web scan | |||||
| API access | High-volume only | Licensees only | |||
| Setup time | Minutes | Days + training | Days | Weeks | Days to weeks |
| On-premise option | Enterprise only | ||||
| Per-page cost | $0.30 - $12 | Quote-based | Quote-based | Quote-based | $1.25-2.75/pg (service) |
| Licensing model | Per-page (no seats) | Quote-based seats | Concurrent user seats | Enterprise licence | Platform licence + per-page |
| Transparent pricing | |||||
| Automation rate | 90%+ | AI-assisted (no % published) | Up to 90% (claimed) | Up to 80% (claimed) | 90% tagging (claimed) |
| LLM / Vision AI | GenAI emerging | ||||
| AI alt text generation | Templates only | Basic ML | |||
| AI heading hierarchy fix | |||||
| AI reading order correction | |||||
| Auto artifact detection | |||||
| Bulk processing | |||||
| Structure tree analysis | |||||
| Font embedding check | |||||
| Unicode mapping check | |||||
| Language attribute | |||||
| Document title | |||||
| Alt text validation | |||||
| Table header validation | |||||
| Link accessibility | |||||
| Form field tooltips (/TU) | |||||
| Tab order validation | Manual | ||||
| Required field flagging | Manual | ||||
| Bookmarks / outlines | |||||
| DisplayDocTitle | |||||
| Standards coverage | WCAG 2.1 AA, PDF/UA, 508 | WCAG 2.2, PDF/UA, 508, HHS, EAA | WCAG 2.2, PDF/UA, 508, EAA | WCAG 2.2, PDF/UA, 508, EN 301 549 | WCAG 2.2, PDF/UA, 508, EAA, RGAA |
| Human review tier | Yes ($12/pg, 100%) | Yes (5-day turnaround) | Built into workflow | accessibilityReview module | Included in service |
| Office docs (DOCX/PPTX) | |||||
| Total automated checks | 14 | ~12 (manual) | Not published | 120+ (claimed) | Not published |
Data sourced from published product documentation, public pricing, software analysis, and the PDF Association validator comparison study. Last updated April 2026.
Two fundamentally different approaches
Most competitors use AI to assist human operators or auto-tag documents with traditional ML. CASO Comply is the only platform using frontier LLM vision models that actually see your documents.
Traditional approach
ML + human review
- ML detects document structure — can't understand content meaning
- Auto-tags by pattern matching — can't judge if hierarchy makes sense
- Cannot see the rendered page — works from tag metadata only
- Human review required for complex documents
- Alt text is generic ML captions or manual — not contextual
- No public pricing — enterprise sales process required
CASO Comply
AI-powered analysis + remediation
- Vision AI sees each page and generates meaningful alt text
- AI verifies heading hierarchy makes semantic sense, fixes it if not
- Renders pages as images for visual layout understanding
- Processes hundreds of PDFs in bulk, automatically
- Finds issues AND fixes them — full remediation pipeline
- Cloud-based or Docker — works on any OS, any device
No single validator agrees with another 50% of the time
A PDF Association study tested 155 PDFs across veraPDF, PAC, CommonLook, and Adobe Preflight. 50.3% of files got different results depending on which validator was used. Only 33.5% got unanimous agreement.
CASO Comply validates every document with veraPDF automatically — the open-source, vendor-neutral standard recognized by the PDF Association and the European Commission.
Competitor deep dives
What each platform actually does, how much it really costs, and where it falls short.
CommonLook / Allyant
Browser + Desktop + ServicesApproach
AI-assisted, human-driven
Automation
AI-assisted (no % published)
Platform
Browser-based (any OS) for main product; free validator is Windows-only
Pricing
Quote-based (no public pricing); 5-day remediation service available
Strengths
- Trusted brand in federal government (70%+ federal adoption)
- Deep PDF tag tree control
- 100% compliance guarantee on remediation services
- Main product now browser-based (cross-platform)
- Broad standards coverage (WCAG 2.2, PDF/UA, 508, HHS, EAA, AODA)
Limitations
- No API — cannot integrate into automated workflows
- Free validator still requires Windows + Adobe Acrobat
- No public pricing — sales call required
- AI assists but still requires trained human operators
- One PDF at a time — no bulk automation
- Free validator has zero AI capabilities (.NET 4.7 from 2017)
Equidox
Cloud SaaS + On-PremApproach
AI-assisted (Smart Zone detection)
Automation
Up to 90% (per their claims)
Platform
Browser-based (PC or Mac)
Pricing
Quote-based (concurrent user licensing, no public pricing)
Strengths
- Browser-based — no desktop install, works on Mac
- Smart Zone Detector for AI-assisted tagging
- Equidox AI product for fully automated high-volume templated docs
- On-premises deployment option available
- GSA contract holder (sells to federal government)
- Collaborative multi-user editing
Limitations
- PDF input only — no Office document support
- AI alt text only for trained templates, not general-purpose
- No public pricing — sales call required
- API only available for high-volume Equidox AI product
- Full automation limited to templated/repetitive documents
codemantra
Cloud Platform (AWS)Approach
ML auto-tagging (up to 80%)
Automation
Up to 80% (per their claims)
Platform
Cloud-based (AWS)
Pricing
Quote-based (licence model; no public per-page pricing)
Strengths
- 300+ global customers
- Broad format support (PDF, Word, Excel, PPT, ePub)
- MathML equation support
- UK Government approved (G-Cloud listed)
- 120+ automated accessibility checks
- SOC2 Type 2 and ISO 9001 certified
Limitations
- Core pipeline uses traditional ML — LLM/GenAI only in separate CalibrAI brand
- Review UI is explicitly not accessible (per their own G-Cloud filing)
- API available to licensees only — no public self-service access
- No public pricing transparency
- Weeks-long enterprise onboarding
Continual Engine PREP
Cloud PlatformApproach
AI/ML + computer vision (90% auto-tagging claimed)
Automation
90% auto-tagging, 95% accuracy (per their claims)
Platform
Cloud-based (on-prem available for enterprise)
Pricing
$1.25-2.75/page (managed service); platform licence quoted separately
Strengths
- Broad format support including PDF-to-HTML output
- LMS integrations (Canvas, D2L Brightspace, CivicPlus)
- Auto-Tag, Checker, and Audit APIs (launched March 2026)
- AI-generated alt text for images, charts, and graphs
- Used by Stanford, Virginia Tech, Johns Hopkins
- ISO 27001, SOC 2 Type I certified
Limitations
- Vague on underlying AI technology (never names models or frameworks)
- Managed service pricing ($1.25-2.75/page) higher than initially positioned
- No free scan or instant web-based trial
- Cloud is primary deployment; on-prem not prominently offered
- No evidence of LLM usage for semantic understanding
ADA Title II Deadline
April 26, 2027 is approaching
State and local government entities serving populations of 50,000+ must meet WCAG 2.1 AA for all web content — including every PDF on your website. The DOJ's April 2026 Interim Final Rule extended the deadline one year from April 24, 2026.
5,000+
Average PDFs on a state government website
$500K+
Cost to manually remediate at $8-12/page
$1,500
Same 5,000 PDFs with CASO at $0.30/page
See it for yourself
Scan your website for free. See every non-compliant PDF with a compliance score — in under 60 seconds, no signup required.
CASO Comply vs. CommonLook
CommonLook, now sold under the Allyant brand, is one of the oldest names in PDF remediation. It combines a browser and desktop tool with a professional services practice. Its free PDF validator runs on Windows only and requires Acrobat. The product is positioned as AI-assisted but human-driven, with quote-based pricing and no published per-page rates.
CASO Comply is a different model: a fully AI-powered PDF remediation SaaS platform with published pricing from $0.30 per page, an instant 25-page free scan, a REST API, and a Docker Agent that keeps documents on your own infrastructure. Where CommonLook depends on consultants and training days, CASO Comply is designed so a single administrator can scan a website and remediate a backlog without a sales call. CommonLook still fits organizations that want a services-led engagement; CASO Comply fits organizations that want speed, scale, and transparent cost.
CASO Comply vs. Equidox
Equidox is a browser-based remediation tool sold primarily through annual licenses with professional services. It is built around assisted manual tagging: the tool surfaces issues, and a human specialist resolves them. Some automation exists, but the core workflow is interactive.
CASO Comply replaces the manual workflow with end-to-end AI automation. Document discovery, structure tagging, reading order, OCR, alt text, table markup, form labels, and PDF/UA validation all happen in under a minute per document, at $0.30 per page. For organizations that want human control over every tag, Equidox is a reasonable fit. For organizations remediating thousands of PDFs to meet ADA Title II deadlines, the per-document manual model is not practical at scale.
CASO Comply vs. codemantra
codemantra is an enterprise accessibility platform with a services-heavy sales model and no published per-page pricing. It has a broad feature set — PDF, Word, PowerPoint, OCR, analytics — and is typically sold as an annual platform license plus managed services.
CASO Comply delivers the same core remediation outcomes with transparent $0.30-per-page pricing, a free 25-page site scan, and a self-serve path that small and mid-size organizations can start in minutes. For large libraries, bulk remediation processes thousands of documents in parallel. Enterprises that want a wrap-around service contract with dedicated account teams may still find codemantra a fit; CASO Comply is the better match for organizations that want to measure first, remediate second, and keep the budget predictable.
CASO Comply vs. Continual Engine PREP
Continual Engine PREP is a PDF remediation tool with some automation and a professional services overlay. Pricing is quote-based and deployment is primarily cloud-hosted.
CASO Comply publishes its pricing, offers a free instant scan, provides a Docker Agent so documents never leave your network, and guarantees 95%+ compliance at the Enhanced Compliance tier. For organizations that value data residency or want to compare before committing, CASO Comply removes the sales-call barrier — review our security and compliance posture for details. PREP can work for teams that want a pre-packaged cloud service with hands-on support, but is less suited to organizations under a compliance deadline that need to move quickly.
Quick Comparison: Pricing, Speed, and Automation
Across the five platforms, the trade-offs fall into four consistent buckets: pricing transparency, speed to first result, automation depth, and standards coverage.
Pricing. CASO Comply publishes $0.30 per page for Standard Accessibility, $1.80 per page for Enhanced Compliance, and $12 per page starting for Full Remediation. CommonLook, Equidox, codemantra, and Continual Engine PREP are all quote-based with no public per-page rates.
Speed. CASO Comply delivers a compliance-scored scan in under 60 seconds with no signup, no credit card, and no install. All four competitors require a form, a sales call, a software install, or a scheduled demo before returning any result.
Automation. CASO Comply runs 14 automated accessibility checks and uses AI for tagging, alt text, reading order, and table markup on every document. The competitors range from AI-assisted human workflows (CommonLook, Equidox) to services-heavy automation (codemantra, Continual Engine).
Standards coverage. All five platforms can produce PDFs that conform to WCAG 2.1 AA, PDF/UA, and Section 508. CASO Comply validates every output against PDF/UA using veraPDF before release.
Frequently Asked Questions
How does CASO Comply compare to CommonLook?
CommonLook (by Allyant) is a browser and desktop tool plus a professional services practice for PDF remediation. It is AI-assisted but human-driven, quote-based with no public pricing, and typically requires days of setup and training. CASO Comply is a fully AI-powered SaaS platform with published pricing starting at $0.30 per page, an instant free scan, a REST API, and Docker Agent on-premise deployment. For organizations that want speed, scale, and predictable cost, CASO Comply is the more accessible path — CommonLook fits organizations that prefer a consulting-heavy engagement model.
How does CASO Comply compare to Equidox?
Equidox is a browser-based remediation tool sold primarily through annual licenses with professional services. It focuses on assisted manual tagging with some automation. CASO Comply replaces the manual workflow with end-to-end AI automation: document discovery, tagging, reading order, OCR, alt text, table markup, and validation — in under a minute per document. Equidox suits organizations that want full manual control; CASO Comply is the right fit when volume is high and manual remediation is impractical.
How does CASO Comply compare to codemantra?
codemantra is an enterprise accessibility platform with a services-heavy sales model and no published per-page pricing. It has a broad feature set but is typically sold as an annual platform license plus managed services. CASO Comply delivers the same core remediation outcomes with transparent $0.30-per-page pricing, a free 25-page site scan, and a self-serve path that small and mid-size organizations can start in minutes. codemantra may fit large enterprises that want a wrap-around service contract.
How does CASO Comply compare to Continual Engine PREP?
Continual Engine PREP is a PDF remediation tool with some automation and a professional services overlay. Pricing is quote-based and deployment is primarily cloud-hosted. CASO Comply publishes its pricing, offers a free instant scan, provides a Docker Agent so documents never leave your network, and guarantees 95%+ compliance at the Enhanced Compliance tier. For organizations that value data residency or want to compare before committing, CASO Comply removes the sales-call barrier.
What is the cheapest PDF remediation tool?
CASO Comply publishes the lowest per-page pricing in the market at $0.30 per page for automated Standard Accessibility. Most competitors (CommonLook, Equidox, codemantra, Continual Engine) require a sales call and do not publish pricing publicly — in our customer conversations, comparable work typically quotes between $5 and $12 per page. At volume, CASO Comply reduces remediation costs by up to 95% versus traditional manual rates.
What is the best PDF remediation tool for government agencies?
Government agencies benefit most from tools that combine transparent pricing, bulk processing, and deployment models that respect data handling policies. CASO Comply is SOC 2 Type II certified, offers a Docker Agent so documents never leave the agency network, provides REST API integration, and publishes $0.30-per-page pricing that fits agency budgets. The Full Remediation tier adds expert human review and a Certificate of Compliance for audit and procurement documentation.
What is the best PDF remediation tool for universities?
Universities typically face tens of thousands of PDFs across LMS platforms, departments, and subdomains. CASO Comply's SiteScan crawler discovers content across these surfaces, the AI engine remediates at volume, and the REST API plus Docker Agent integrate with Canvas, Blackboard, Moodle, and SharePoint. Pricing at $0.30 per page keeps large-scale remediation within higher education budgets — a 10,000-page backlog costs $3,000 at Standard Accessibility versus $50,000–$150,000 at traditional manual rates.