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Engineering Theory

DocAble

Automated Accessibility Remediation for Educational Material

ADA accessibility remediation tool for PowerPoint, Word, Excel, and PDF. Automatically improves alt text, reading order, contrast, slide titles, table headers, document language, and other common accessibility issues. Built for educators, universities, and government agencies facing ADA accessibility requirements. Upload your PPTX, DOCX, XLSX, or PDF and get a remediated version in seconds. Results should be verified in your document app's built-in accessibility checker.

Tested on real lecture slides and documents: handwritten math, embedded equations, circuit diagrams, geological maps, stepper motors, moon photos, engineering schematics, and more.

DocAble Editor

Review and refine accessibility across all supported formats in your browser — alt text, headings, reading order, and decorative marking.

Open editor →

Examples

See real lecture slides and documents we've fixed — before and after, with accessibility scores.

Browse examples →

The engineering behind DocAble

DocAble is underpinned by innovation in Model-Based Agentic Software Engineering (MAGE) — a method by which an AI agent-team designs, builds, and governs the tool. It's why DocAble improves as fast and as reliably as it does.

Read the essay → Read the book →

UPLOAD FILES TO REMEDIATE

Files will be automatically updated to improve accessibility.

Automated fixes don't catch everything (especially PDFs). Verify results in your document app's built-in checker.

If you need to publish PDFs, prefer to remediate source files with DocAble and then use sanctioned PDF export paths from the source tool.

Writing in LaTeX? DocAble can add accessibility markup to your .tex source — see the LaTeX accessibility FAQ.

How to check the result
Bulk update guide (LMS)

Many of our improvements are visible to assistive technology but not to all users, and they always operate. These toggles let you customize behavior and control the visible-to-all changes.

All formats
Replace existing alt text where ours is better
Reduce oversized images to 150 dpi for smaller filesizes
Replace math pictures and raw math with OMML (better accessibility for screen readers)
Add context for alt-text generation
Calibrates vocabulary, terminology depth, and acronym handling. Off (default) leaves alt-text uncalibrated.
Format-specific changes
PDF
Improve outline from scanned content
Add page numbers for screen readers
Repair missing fonts
PowerPoint
Modify section names
Modify slide titles
Modify URL text
Repair missing fonts
Modify reading order
AI-generate speaker notes for slides that have none

Off by default — review the generated notes before presenting.

Word
Modify document headings
Modify URL text
Repair missing fonts
Excel
Modify sheet names
Repair missing fonts

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What does this tool do?

DocAble automatically fixes common accessibility issues in PowerPoint (.pptx), Word (.docx), and PDF files: missing alt text, missing titles, low-contrast text, incorrect reading order, missing table headers, document metadata, and more.

The goal is to improve access for all students and help documents better satisfy the accessibility checks in Microsoft Office and Adobe Acrobat.

This tool will not modify existing content. It only enhances the material to be usable by accessibility tools.

DocAble also includes a free accessibility viewer and editor for all supported formats.

Beta version

DocAble is currently in beta. Paid accounts will be available later. Thank you for visiting the Beta version.

Anonymous (guest) usage: 100 pages every 24 hours — no signup required.

"Wow. I've never opened PowerPoint's accessibility checker and not seen any errors."

— University instructor