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PDF Accessibility Tags

โ™ฟ Auto-generate PDF accessibility tags (UA/508/WCAG) โ€” add document structure, alt text, and reading order

Auto-generate WCAG 2.1/Section 508 compliant tags for PDFs. All via OpenDataLoader local browser processing.

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Click or drag a PDF file here

Max 200MB per file, standard PDF only

โš ๏ธ Beta (internal office use) โ€” Verify accessibility with Adobe Acrobat after export. Engine under active iteration.

๐Ÿ“‹ Usage Notes & Known Limitations

1. Scanned image-only PDFs: This tool lacks a full OCR module. Acrobat will flag image-only PDF failures. Use PDF OCR Text Recognition to extract text first, then regenerate accessibility tags.

2. Document tab order: Auto reading-order may have flaws on complex layouts. For high-standard documents, verify in Adobe Acrobat after export.

๐Ÿ”ง Planned: Built-in OCR module, tag hierarchy & reading-order algorithm optimization.

Related Tools

๐Ÿ“‹PDF Metadata Editor๐Ÿ“„PDF to PDF/A Converter

Frequently Asked Questions

How It Works

Powered by OpenDataLoader local PDF engine. All processing is browser-local โ€” no uploads.

1. Local PDF layered parsing: Reads all page vector data. OpenDataLoader decomposes text, images, tables, headings โ€” all in browser memory.

2. Auto semantic tag generation: Auto-generates H1-H6 headings, AI alt-text, restructured reading order, table headers, embedded fonts, and metadata.

3. Compliant PDF restructuring: Rewrites per international standards. Original layout preserved โ€” only tags added.

4. Local offline export: New compliant PDF generated locally. One-click download. Original never modified.