Accessibility

Android devices support a number of accessibility features not listed here. For more information, refer to the Android Accessibility Overview. You can also check your accessibility settings by going to your device’s settings screen and tapping Accessibility (or search for it if the menu item does not display).

Visual features

Text display size

Android allows you to specify a preferred text size. Acrobat’s support for font sizes means that its user interface will automatically scale fonts according to your settings. To increase or decrease Acrobat’s font size:

  1. Go to your device’s settings screen.

  2. Tap Accessibility (or search for it if the menu item does not display).

  3. Tap Display > Font Size.

  4. Adjust the slider to your preferred setting.

../_images/textsize.png

Inverting colors

Your device settings include an option to invert colors.

  1. Go to your device’s settings screen.

  2. Tap Accessibility (or search for it if the menu item does not display).

  3. Tap Color inversion.

../_images/invertcolor.png

Night mode

Night Mode adjusts your display brightness to improve readability in low light conditions. Night mode also reduces eye strain and extends your battery life:

  1. Go to your device’s settings screen.

  2. Tap Display > Night Mode.

  3. Enable Night Mode.

  4. Move the Effect Strength slider to adjust how much Night Mode changes your display.

../_images/nightmode.png

Acrobat’s night mode

Acrobat’s Night Mode inverts black and white in low light conditions to enhance contrast, reduce eye strain, and extend your battery life.

To set the view mode:

  1. Tap anywhere in the PDF to show the tool bars if they are hidden.

  2. Tap the view mode icon. The displayed icon represents the current view.

  3. Tap one Night Mode.

../_images/viewmodes.png

Display brightness

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

  1. Go to your device’s settings screen.

  2. Tap Display.

  3. Disable or enable Adaptive brightness.

  4. Move the brightness slider to your preferred level.

../_images/brightness.png

Audio features

Talkback

Acrobat supports Talkback, the Android built-in screen reader. If this feature is available on your device:

  1. Go to your device’s settings screen.

  2. Tap Accessibility (or search for it if the menu item does not display).

  3. Tap Talkback.

  4. Enable the feature.

Other text-to-speech readers

Your device may provide other screen readers or text-to-speech features. You may have to open your settings app and search for your device’s audio features.

Here’s an example from one device:

  1. Go to your device’s settings screen.

  2. Tap Accessibility (or search for it if the menu item does not display).

  3. Tap Text-to-Speech Output.

  4. Configure the setting as need. For example, you may be able to select a preferred text-to-speech engine, the language, speech rate, and pitch.

../_images/talkback.png

Gesture features

The app supports the standard TalkBack gestures as described in Google’s documentation.

Keyboard shortcuts

Shortcuts are currently only available on Chromebook devices.

Page and file navigation shortcuts

Navigation shortcuts

Feature

Shortcut

Scroll up

Up Arrow

Scroll down

Down Arrow

First Page

Shift + CTRL + Up Arrow

Last Page

Shift + CTRL + Down Arrow

Scroll

Spacebar

Zoom in

CTRL + equal sign

Zoom out

CTRL + hypen

Undo

CTRL + Z

Redo

CTRL + Shift + Z

Search

CTRL + F

Copy

Ctrl + C

Paste

Ctrl + V

Print

CTRL + P

Commenting shortcuts

While the multi-key shortcuts work by default, you must manually enable the single-key shortcuts. To enable single-key shortcuts on Chromebook, go to your device settings and enable Enable Hotkeys.

Commenting shortcuts

Feature

Shortcut

Sticky Note Tool

S

Text Edits Tool

E

Highlighting Tool

U

Cycle through text markup tools: Highlight, Underline, Cross Out

Shift + U

Sdrawing markup tool

D

Commit the text markup/freeform

Enter

Add bookmark for current visible PDF page

CTRL + D

Open/close Right Hand Pane

Ctrl + Shift + B

Swipe the tabs In RHP

Ctrl + tab

Home screen shortcuts

Home screen shortcuts

Feature

Shortcut

Scroll up the file list

Up Arrow

Scroll down the file list

Down Arrow

Open any file or folder

Enter

Switch Home Screen tabs

Ctrl + tab / Ctrl + <respective tab number>

Search

Ctrl + F