Best PDF Accessibility Software in 2026
Updated
In short: Grackle GO is ranked #1 of 27 as of 5 October 2026, ahead of PDFix Desktop and DocAccessible. The best-ranked option with a free plan is PDFix Desktop. The lowest first paid tier on this page is DocAccessible at $19/mo.
Making PDFs accessible can mean addressing document structure, text alternatives, and the order in which content is read. Compare alternative-text tools, PDF tagging tools, and reading order tools alongside PDF/UA support and OCR. Batch processing and API access may also matter depending on how documents move through your workflow; free-plan availability and paid-from pricing add cost context. Grackle GO, PDFix Desktop, and DocAccessible are among the entries, along with Fruition PDF Accessibility and PDFAccessibility.ai. Use the listed capabilities to weigh the document tasks and processing approach you need to support.
27 PDF accessibility software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
9 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Grackle GOWeb · Windows · Mac · Linux | Three bars | — | 4 of 6 | Free | 6.5 | |
| 2 | PDFix DesktopWindows · Mac · Linux | Three bars | — | 3 of 6 | Free | 6.5 | |
| 3 | DocAccessibleWeb · API | Two bars | — | 1 of 6 | $19/mo | 6.4 | |
| 4 | Fruition PDF AccessibilityWeb · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 5 | NormflussWeb · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 6 | PDFAccessibility.aiWeb · API | Two bars | — | 1 of 6 | $29/mo | 6.4 | |
| 7 | Adobe PDF Services APIWeb | Two bars | — | 1 of 6 | Free | 6.3 | |
| 8 | Nutrient DWS Accessibility APISelf-hosted · API | Two bars | — | 0 of 6 | $79/mo | 6.3 | |
| 9 | PAC (PDF Accessibility Checker)Windows | Two bars | — | 1 of 6 | Free | 6.3 | |
| 10 | Adobe ScanAndroid · iPhone | One bar | — | — | 2 of 6 | — | 5.5 |
| 11 | PRO ViewerWeb · Windows · Linux | Two bars | — | — | 3 of 6 | — | 5.5 |
| 12 | AccessiblePDFWeb | One bar | — | — | 1 of 6 | $50/mo | 5.4 |
| 13 | ComplyLoft PDF Accessibility CheckerWeb | One bar | — | — | 1 of 6 | — | 5.4 |
| 14 | veraPDFWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.4 |
| 15 | Adobe Acrobat ProWeb · Windows · Mac · Android · iPhone | Two bars | — | — | 5 of 6 | — | 5.2 |
| 16 | Askem PDF FixerWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 17 | EqualWeb PDF ToolsWeb | One bar | — | — | 1 of 6 | — | 5.2 |
| 18 | OpenText Document AccessibilityWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 19 | PAVE 2.0Web | No signal | — | — | 1 of 6 | — | 5.2 |
| 20 | PDF Accessible PlatformWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 21 | Equidox SoftwareWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 22 | PDFTagDogWeb · Self-hosted | One bar | — | — | 1 of 6 | — | 5.0 |
| 23 | axesPDFWindows | One bar | — | — | 1 of 6 | $54.17/mo | 4.9 |
| 24 | pdfaa.aiWeb | One bar | — | — | 1 of 6 | — | 4.9 |
| 25 | CASO ComplyWeb | One bar | — | — | 1 of 6 | — | 4.8 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | PDF tagging tools | Reading order tools |
|---|---|---|---|---|---|---|---|---|
| 1 | Grackle GO | 6.5 | Free plan | Free | No | — | Yes | Yes |
| 2 | PDFix Desktop | 6.5 | Free plan | — | Yes | — | — | — |
| 3 | DocAccessible | 6.4 | Free plan | $19/mo | Yes | 19 /mo | Yes | Yes |
| 4 | Fruition PDF Accessibility | 6.4 | Free plan | Free | Yes | — | Yes | Yes |
| 5 | Normfluss | 6.4 | Free plan | Free | Yes | — | Yes | Yes |
| 6 | PDFAccessibility.ai | 6.4 | Free plan | $29/mo | Yes | 29 /mo | Yes | Yes |
| 7 | Adobe PDF Services API | 6.3 | Free plan | Free | Yes | — | — | — |
| 8 | Nutrient DWS Accessibility API | 6.3 | Free plan | $79/mo | Yes | 79 /mo | Yes | Yes |
| 9 | PAC (PDF Accessibility Checker) | 6.3 | Free plan | Free | Yes | — | — | — |
| 10 | Adobe Scan | 5.5 | No | — | No | — | Yes | Yes |
| 11 | PRO Viewer | 5.5 | No | — | — | — | Yes | Yes |
| 12 | AccessiblePDF | 5.4 | No | $50/mo | Yes | — | Yes | Yes |
| 13 | ComplyLoft PDF Accessibility Checker | 5.4 | No | — | Yes | — | — | — |
| 14 | veraPDF | 5.4 | No | — | Yes | — | — | — |
| 15 | Adobe Acrobat Pro | 5.2 | No | — | No | — | Yes | Yes |
| 16 | Askem PDF Fixer | 5.2 | No | — | — | — | Yes | Yes |
| 17 | EqualWeb PDF Tools | 5.2 | No | — | Yes | — | Yes | Yes |
| 18 | OpenText Document Accessibility | 5.2 | No | — | — | — | Yes | — |
| 19 | PAVE 2.0 | 5.2 | No | — | Yes | — | Yes | Yes |
| 20 | PDF Accessible Platform | 5.2 | No | — | — | — | Yes | Yes |
| 21 | Equidox Software | 5.1 | No | — | — | — | Yes | Yes |
| 22 | PDFTagDog | 5.0 | No | — | No | — | Yes | Yes |
| 23 | axesPDF | 4.9 | No | $54.17/mo | No | — | — | — |
| 24 | pdfaa.ai | 4.9 | No | — | No | — | Yes | Yes |
| 25 | CASO Comply | 4.8 | No | — | No | — | Yes | Yes |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which PDF accessibility software is ranked first on Freedom251?
Grackle GO is ranked #1 of 27 with a score of 6.5. PDFix Desktop is second and DocAccessible third.
How many of these have a free plan?
9 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, DocAccessible has the lowest first paid tier we found: $19/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.