All applets, scripts and plug-ins (including PDF and PowerPoint files, etc.) and the content within them are accessible to assistive technologies, or else an alternative means of accessing equivalent content is provided.
A PDF file can be made accessible to screen reader users, but it may be best to include an accessible HTML version of a document instead of or in addition to PDF.
Learn more about creating Accessible PDFs by reading Adobe's PDF Accessibility Overview
Acrobat tools make it easy to create accessible PDFs and check the accessibility of existing PDFs. You can create PDFs to meet common accessibility standards, such as Web Content Accessibility Guidelines (WCAG) 2.0 and PDF/UA (Universal Access, or ISO 14289). The simple, guided workflow lets you do the following:
Make PDFs accessible: A predefined action automates many tasks, checks accessibility, and provides instructions for items that require manual fixes. Quickly find and fix problem areas.
Check accessibility: The Full Check/Accessibility Check tool verifies whether the document conforms to accessibility standards, such as PDF/UA and WCAG 2.0.
Report accessibility status: The Accessibility Report summarizes the findings of the accessibility check. It contains links to tools and documentation that assist in fixing problems.
Learn more about accessible documents created with Microsoft Office applications.
Before sending your Outlook email message or sharing your Word document, Excel spreadsheet, or PowerPoint presentation, run the Accessibility Checker to make sure your Microsoft Office content is easy for people with disabilities to read and edit.
Try reading the document you're drafting with Immersive Reader to experience what it sounds like to a person relying on the use of a screen reader.
Alternative text (alt text) is descriptive text which conveys the meaning and context of a visual item in a digital setting, such as on an app or web page. When screen readers such as Microsoft Narrator, JAWS, and NVDA reach digital content with alt text, they will read the alt text aloud, allowing people to better understand what is on the screen. Well-written, descriptive alt text dramatically reduces ambiguity and improves user experience.