A new web-based tool is now available to transform LaTeX Beamer presentations into accessible formats that meet modern accessibility standards and work seamlessly with assistive technologies.
Available at: https://beam2ltx.gerrypedraza.com
Making Accessible Presentations
Beamer to LTX-Talk is a conversion platform designed to bridge the gap between LaTeX Beamer—the standard for academic and technical presentations—and accessible presentation formats. While Beamer produces visually refined PDFs, these documents often lack the semantic structure required for screen readers and other assistive technologies.
The platform converts existing Beamer presentations into the LTX-Talk format, a LaTeX class specifically engineered for accessibility compliance, including PDF/UA (Universal Accessibility) standards.
Key Features
Automated Validation and Conversion
The system performs preflight validation of source Beamer files before attempting conversion. If the original presentation contains errors or fails to compile, the process halts, ensuring that only valid inputs proceed through the transformation pipeline.
Web-Based Interface
Users can upload Beamer .tex files through an intuitive browser interface, eliminating the need for command-line expertise or local LaTeX installations. The platform handles:
- File upload and project management
- Conversion job tracking and status monitoring
- Output review and validation reporting
- Persistent job history and artifact storage
Collaborative Workflow Support
The platform supports multi-user collaboration with role-based permissions:
- **Project Owners**: Full administrative control
- **Co-Owners**: Editing and management capabilities
- **Collaborators**: View and comment access
Institutional Access Control
Access is restricted to users with verified .edu email addresses through Google Sign-In integration, ensuring the platform serves its intended academic and educational audience.
Technical Infrastructure
The platform is built on a modern web stack:
- **Flask** web framework for application routing
- **SQLAlchemy** ORM for database management
- **PostgreSQL** for production data storage
- **LuaLaTeX** for document compilation and validation
User storage is managed with per-account quotas, starting at 0.5 GB per user.
Planned Enhancements
Future development includes:
- **AI-assisted error recovery**: Optional reprocessing of failed conversions using user-provided OpenAI API keys
- **Automated alt-text generation**: AI-powered image descriptions for enhanced accessibility
- **Issue reporting system**: User-submitted feedback for conversion failures or unexpected outputs
- **Batch processing**: Support for multiple file conversions
Getting Started
Educators, researchers, and academic professionals can begin using Beamer to LTX-Talk by visiting:
<https://beam2ltx.gerrypedraza.com/>
Sign in with an .edu email address to access the platform. No installation or local configuration required.
Why Accessibility Matters
As higher education institutions implement stronger accessibility requirements, tools that facilitate compliance without disrupting existing workflows become essential. Beamer to LTX-Talk allows academic professionals to maintain their preferred authoring tools while ensuring their presentations meet modern accessibility standards.
The platform addresses a critical gap in the academic publishing and presentation ecosystem, enabling inclusive access to technical and scientific content.
Resources
- **LTX-Talk LaTeX Class**: <https://github.com/josephwright/ltx-talk>
- **PDF/UA Standard**: <https://www.pdfa.org/resource/pdfua/>
- **Beamer Documentation**: <https://ctan.org/pkg/beamer>
- **PAC Accessibility Checker**: <https://www.access-for-all.ch/en/pdf-lab/pdf-accessibility-checker-pac.html>
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Platform Access: <https://beam2ltx.gerrypedraza.com/>
Requirements: Google Sign-In with .edu email address
Status: Available for institutional use