# Accessibility Overview

The Kendo UI for Angular PDFViewer component is [WCAG 2.2 AA](https://www.w3.org/TR/WCAG22/) and [Section 508](http://www.section508.gov/) compliant. The component also follows the [WAI-ARIA best practices](https://www.w3.org/TR/wai-aria-practices/) for implementing the [keyboard navigation](https://www.telerik.com/kendo-angular-ui-develop/components/pdfviewer/keyboard-navigation) for its component [role](https://www.w3.org/TR/wai-aria#roles) and is tested against the popular screen readers.

> Due to the rich feature set of the library and complexity of some components, the specific combination of configuration options may lead to inaccessible component rendering. Perform thorough testing on any modifications applied to the Kendo UI for Angular components to ensure that they continue to comply with the desired level of accessibility standards.

The following example demonstrates the accessibility compliance of the PDFViewer component. Open the example in a new window to evaluate it with [Axe Core](https://www.npmjs.com/package/axe-core) or other accessibility tools.

> The described level of compliance is achievable with the [Ocean Blue A11y Accessibility Swatch](https://www.telerik.com/kendo-angular-ui-develop/components/accessibility#color-contrast).

[Demo Source](https://demos.telerik.com/kendo-angular-ui/demos/pdfviewer/overview/source.txt)

## WAI-ARIA

All relevant internal elements of the PDFViewer component have the aria attributes and roles with their respective values, required for WCAG 2.2 compliance.

## Section 508

The PDFViewer is compliant with the [Section 508](https://www.section508.gov/) requirements.

## Static analyzers

The tool used for Automated Testing is [Axe Core](https://www.npmjs.com/package/axe-core).

## Screen Readers

| Environment    | Tool |
| -------------- | ---- |
| Firefox        | NVDA |
| Chrome         | JAWS |
| Microsoft Edge | JAWS |

## Suggested Links

* [Angular Accessibility Overview](https://www.telerik.com/kendo-angular-ui-develop/components/accessibility)
* [API Reference of the PDFViewer component](https://www.telerik.com/kendo-angular-ui-develop/components/pdfviewer/api/pdfviewercomponent)
* [API Index of the PDFViewer](https://www.telerik.com/kendo-angular-ui-develop/components/pdfviewer/api)
* [Keyboard Navigation](https://www.telerik.com/kendo-angular-ui-develop/components/pdfviewer/keyboard-navigation)
* [WAI-ARIA Resources](https://www.w3.org/TR/wai-aria-practices)