AccessibilityChecker.org vs PDFix Desktop
AccessibilityChecker.org
accessibilitychecker.org
PDFix Desktop
pdfix.netSide by side
| Figure | AccessibilityChecker.org | PDFix Desktop |
|---|---|---|
| Price from | $89/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 7 |
| Spec score · Accessibility Testing Software | 9.0 (#9) | 9.0 (#11) |
| Changelog | ACE Engine v3.8, marked current for March–April 2026, improved WCAG visibility, sitemap handling and VPAT generation. | Release 3.3.0 dated 2026-08-31 fixed tag editing, PDF/UA metadata, PDF/A saving and tagging-action issues, and updated the SDK to 9.3.0. |
| Documentation | The help center contains getting-started, billing, domain-management, dashboard, troubleshooting, advanced-feature and integration articles. | The maker links to SDK and Desktop documentation, user guides, validation guides, batch-action references, layout-template material and language-specific code examples. |
| Free plan | No | Yes |
| Headquarters | Newark, Delaware, United States | Stupava, Slovakia |
| Licence | ACE Engine is described as proprietary, so the product is not open source and no open-source licence is stated. | An independent product directory describes Desktop licensing as a proprietary commercial EULA rather than open source, with SDK Lite under Apache 2.0. |
| Rating on G2 | 4.0 out of 5 from 1 review | 0 out of 5 from 0 reviews |
| What it does | AccessibilityChecker.org scans websites for accessibility issues and provides explanations and remediation guidance. | PDFix Desktop is a desktop application for automated and manual PDF accessibility remediation, tagging, conversion, extraction and compliance validation. |
Plans
AccessibilityChecker.org
- Lite$89 a month
- Starter$149 a month
- Growth$299 a month
- TailoredPriced on request
PDFix Desktop
- Desktop Pro$599 a year
- Desktop Enterprise€1,000 a year
- Desktop LiteFree
- PDFix Desktop LiteFree
- Desktop Pro$599 a year
- PDFix Desktop Pro$599 a year
- PDFix Desktop Enterprise€1,000 a year
In their own words
AccessibilityChecker.org
AccessibilityChecker.org has no write-up on Specifiction yet; its figures are above.
PDFix Desktop
PDFix Desktop is a desktop application for PDF accessibility remediation, auto-tagging, and validation against PDF/UA and WCAG standards. It runs on Windows, macOS, and Linux and offers automated scans as well as manual review tools. Four auto-tagging methods are available: basic tagging, templates generated from preflight checks, AI-generated templates, and predefined layout templates. A visual Accessibility Panel lets users refine tables, headings, and alternative text. Its built-in veraPDF engine checks PDF/UA-1 and PDF/UA-2, WCAG 2.1 and 2.2, Section 508, and the European Accessibility Act; audit reports can be exported in HTML, XML, or JSON. The free download exposes all features, but saved PDFs may contain redacted content and a watermark. Desktop Pro costs $599 a year, and Desktop Enterprise costs €1,000 a year; Enterprise adds batch processing with layout templates. The product page says validation is local and documents are not uploaded to a server. PDFix cautions that human checks and intervention remain necessary for full compliance.