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🤝 Sienna x LumioPDF Partnership arrow_forward
The Ecosystem

Accessiblity in PDF.

Our partnership with LumioPDF brings Sienna's accessibility engine directly into your document workflow.

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Accessibility Reader

Reflow PDF text with adjustable fonts, dyslexia support, and themes.

Sienna Partner
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visibility

Visual PDF Reader

Inspect PDFs with hardware-accelerated contrast filters.

Sienna Powered
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palette

Contrast & Colors

Apply high-contrast vision filters to document visuals.

Sienna Powered
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Official Partner

LumioPDF: The Full Utility Belt

Over 25+ PDF tools designed for speed, privacy, and accessibility. From conversion to secure redaction, manage every aspect of your documents.

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Standard Tools

Merge PDF

Combine multiple PDFs into one document.

Split PDF

Extract pages or ranges into separate files.

Compress PDF

Reduce file size while keeping quality.

Secure Redact

Permanently black out sensitive data.

Sign PDF

Sign with a local-only signature.

PDF Compare

Find differences side-by-side.

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Conversion

PDF to Word

Convert to editable Word document.

Image to PDF

Convert JPG, PNG, WEBP to PDF.

HTML to PDF

Convert URLs or HTML code to PDF.

Office to PDF

Convert Word, Excel, CSV to PDF.

Knowledge Base

PDF Accessibility Guides.

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Article

Sienna x LumioPDF: Bringing Privacy-First Accessibility to PDF Documents

We're excited to announce our partnership with LumioPDF, a free, client-side PDF tool suite designed with privacy and accessibility at its core.

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Beyond the Web: How We're Fixing PDF Accessibility with LumioPDF

PDFs are a major barrier for accessibility. Learn how our new partnership features—like the Accessibility Reader—are making documents usable for everyone.

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