We also have a Dark Theme example in our Catalog app. See the guide on customizing appearance for information on how to do this. Dark ModeĪside from the high-contrast mode already available in Android, the PSPDFKit UI can also be themed to provide an easier viewing experience for the vision impaired.

Once installed and enabled, navigating the PSPDFKit UI via the keyboard or touch will be accompanied by a descriptive voice explaining each button in focus.

TalkBack can be enabled in the Android settings after installing the Android Accessibility Suite. Information showing how to implement a screen reader can be found in the Screen Reader example from our Android Catalog app. For an in-depth guide on how to do this, check out our How to Build a Screen Reader blog post. Text synthesis can be achieved using the Android Text-To-Speech engine,, and integrated into a PDF activity by extending PdfActivity. You can read more about this feature in our How We Improved Keyboard Navigation in Our Android SDK blog post. Keyboard navigation works in tandem with TalkBack. You can navigate the pages and buttons using the tab key, arrow keys, and enter key. Tab-based navigation is possible throughout the user interface.

PSPDFKit for Android has a number of accessibility features to aide ease of access in our SDK. Accessibility Support for Our Android PDF Viewer

Accessibility screen reader for android