About
Dax Castro is an award-winning, Adobe Certified PDF Accessibility Trainer and certified Accessible Document Specialist (ADS) with more than two decades of experience in the marketing and communications industry. In addition to providing accessibility training to companies worldwide, he and Chad Chelius host a weekly accessibility podcast Chaxchat and PDF Accessibility Facebook group. Dax’s training style focuses on fundamentals in a clear and simple way that is both engaging and informational. Whether you’re a seasoned professional or new to accessibility, you can always count on learning something new from Dax.
Podcast
Speaking at these events
Free Webinar: Foundations of Accessibility
Learn the essentials of accessible design to help you confidently create inclusive content.
The Design + Accessibility Summit 2025
Learn how to design accessible documents with InDesign, Acrobat, PowerPoint, and more at our four-day online event on September 16–19, 2025
CreativePro Week 2025
Available for purchase through September 6. On-demand access ends June 6, 2026. CreativePro Week is the world’s best how-to conference to master the tools of...
The Design + Accessibility Summit 2024
Learn how to design accessible documents with InDesign, Acrobat, PowerPoint, and more at our four-day online event on October 8–11, 2024.
Articles
See all articlesFree Webinar: Foundations of Accessibility
Learn the essentials of accessible design to help you confidently create inclusive content.
PowerPoint Accessibility Checklist
Use this checklist to evaluate your slide deck content for usability.
Alt Text Dos and Don’ts
Here are a few quick guidelines you can employ to create or improve the quality of a piece of alt text.
Careers in Accessibility
Learning about the specialized roles and requirements for accessibility jobs can help you find the right opportunity
How to Make Accessible Tables
Make tabular data accessible using InDesign, Word, PowerPoint, or Excel
Writing Effective Alt Text
Learn how to evaluate graphic content and provide meaningful descriptions.
How to Set Alt Text for Accessibility in InDesign
Learn the difference between alt text and actual text and how to add each to an InDesign file for accessibility.
InDesign How-To: Use the Articles Panel for Accessibility
In this InDesign how-to video, Dax Castro shows how to use the Articles panel to control reading order for accessible documents.