Sienna x LumioPDF: Bringing Privacy-First Accessibility to PDF Documents
At Sienna, our mission has always been to make the web more inclusive without compromising on speed or user privacy. Today, we are thrilled to take that mission beyond the browser window by announcing our official partnership with LumioPDF.
Why LumioPDF?
If you’ve ever had to sign a document or merge two files, you know that most PDF “solutions” are either expensive corporate software or sketchy websites that require you to upload your sensitive data to their servers.
LumioPDF is different. It is a 100% client-side, privacy-first tool. Just like Sienna, your files never leave your computer. All the processing—whether you are merging, compressing, or redacting—happens right in your browser.
A Complete PDF Suite
Through this partnership, users have access to a full range of standard PDF tools for free:
- Security First: Securely Redact sensitive information, Sign documents locally, and Protect files with passwords.
- Powerful Editing: Merge, Split, Compress, and Organize pages visually.
- Advanced Conversion: Effortlessly convert between PDF and Word, Excel, PowerPoint, or images—all without a server-side “middleman.”
The Core of Our Collaboration: Accessibility
While LumioPDF handles the heavy lifting of document management, we’ve worked together to integrate Sienna-inspired accessibility features directly into the PDF viewing experience.
For the first time, PDFs don’t have to be static, unreadable blocks of text. With the new Accessibility Reader and Visual PDF Reader, we are bringing reflowable text, dyslexia-friendly fonts, and hardware-accelerated contrast filters to the world of documents.
Get Started
Accessibility shouldn’t stop at the webpage. Experience a faster, safer, and more accessible way to handle your documents today.
Standard Tools at a Glance:
- Merge & Split: Combine or extract pages in seconds.
- Compress: Shrink files without losing quality.
- Annotate & Sign: Add highlights, shapes, and local-only signatures.
- PDF Compare: View two documents side-by-side to catch every change.
- Office to PDF: Convert Word, Excel, and CSV files instantly.
By combining Sienna’s accessibility expertise with LumioPDF’s privacy-first architecture, we’re making sure that everyone—regardless of ability—can manage their digital documents with confidence.