Manage accessibility

iOS devices support many accessibility features besides the ones listed below. For more information, refer to the Apple support site. You can also check your accessibility settings by going to your device’s settings screen and tapping Accessibility.

Enable visual features

Read in low light

You can use your device’s night shift feature to improve readability in low light conditions. Reading in low light reduces eye strain and extends battery life.

To enable night shift:

  1. Go to your device’s settings screen.

  2. Tap Display & Brightness.

  3. Tap Night Shift.

  1. Configure the settings. Depending on your OS version, you can schedule night shift mode, manually enable the feature, and control the overall hue.


Display brightness

Set your display’s brightness to enhance readability as needed.

  1. Go to your device’s settings screen.

  2. Tap Display & Brightness.

  3. Set the brightness level.


Invert colors

To invert colors:

  1. Tap Settings > Accessibility.

  2. Tap Display & Text Size.

  3. Choose one:

    • Enable Smart Invert to invert most colors but leave images, media, and some apps in their original state.

    • Enable Classic Invert to reverse the colors of the display.



You can also change the contrast, text size, and other display features from this screen.

Enable dark mode

iOS version 13 and later supports dark mode. Dark mode’s high contrast display may improve readability in low light environments as well as extend battery life. For some users, dark mode is an important accessibility feature that maintains color meaning and preserves image representation better than the night mode feature.

  1. Go to your device’s settings screen.

  2. Tap Display & Brightness.

  3. Choose Light or Dark mode.


Enable audio features

Use voiceover

The app supports VoiceOver, an iOS built-in screen reader. VoiceOver allows someone with a visual impairment to use simple gestures to hear PDF content. To enable VoiceOver:

  1. Go to your device’s settings screen.

  2. Tap Accessibility.

  3. Tap VoiceOver and enable the feature.


Gesture features

The app supports the standard VoiceOver gestures as described in Apple’s documentation.

There are also custom actions that help you access files. To display a context board for any file in a file list (Home, Files, Shared, and Search):

  1. Swipe down with one-finger on a file.

  2. When you hear “Context Board”, double-tap.