PDF Editing Issues

How to Change Signature Color and Use Arabic in Acrobat for Android

Ayan MasoodAyan Masood Oct 27, 2026 870 views

Question details

The user wants to know how to type Arabic text correctly and change the color of electronic signatures in Adobe Acrobat or Fill & Sign on an Android device.

How to Change Signature Color and Support Arabic in Acrobat for Android
Product
Adobe Acrobat Reader
Device & OS
Android
Scenario
Signing a PDF document and filling out forms using a mobile device in Arabic.
Observed behavior
The signature color selection feature is available on iOS but missing on Android. Additionally, text input settings default to Hindi formats instead of correctly supporting Arabic writing.
Before you start

Ensure your Android device is updated to the latest operating system and that you have installed the most recent version of your PDF reader from the Google Play Store.

Solution 1Recommended

Update Android Language Settings and App Version

Ensuring your device's system language and keyboard settings match your desired input can resolve regional text glitches like Arabic text defaulting to Hindi formatting.

Mobile apps often rely on system-level language preferences to render fonts correctly. If Arabic text is not displaying as expected, your device's keyboard or language region settings might need adjustment.

1
Open System Settings

Go to your Android device's 'Settings' app and select 'System' or 'General Management'.

2
Adjust Language and Input

Tap on 'Language & input' and ensure Arabic is added to your preferred languages and active keyboard options.

3
Update the PDF App

Open the Google Play Store, search for 'Adobe Acrobat Reader' or 'Adobe Fill & Sign', and tap 'Update' if a newer version is available.

4
Test Signature and Text Input

Launch the app and attempt to type in a form field or sign the document to see if the Arabic input and color options have been restored.

Update Android Language Settings and App Version
Feature Variations: Certain signature appearance options and regional text support may vary significantly depending on the specific app version and Android platform build.
Sign PDFs Easily on Mobile

Use WPS Office to Sign PDFs and Customize Colors on Android

If you are frustrated by platform limitations and missing signature features in other PDF readers, WPS Office provides a powerful, all-in-one alternative. It supports comprehensive PDF editing, customizable electronic signatures, and seamless multi-language input directly on your Android device.

  1. 1. Open Your PDF: Launch the WPS Office app on your Android device and open the PDF document you need to sign.
  2. 2. Access PDF Tools: Tap on the 'Tools' menu at the bottom of the screen and select the 'PDF Edit' or 'Annotation' tab.
  3. 3. Create a Signature: Tap on 'Signature' to create a new electronic signature or insert a previously saved one.
  4. 4. Customize Color: Select your preferred ink color from the palette (e.g., black, blue, red) before saving the signature, then place it on your document.
Easily add, resize, and customize the color of your electronic signatures.Full compatibility with Microsoft Office and standard PDF document formats.Robust multi-language support, ensuring correct Arabic text rendering.Free and lightweight mobile office suite with built-in PDF tools.
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Frequently Asked Questions

Why can I change signature colors in my PDF app on iOS but not on Android?

Feature availability often varies between operating systems due to different development cycles. The signature color selection tool is natively supported in the iOS version of some popular PDF readers, but it may be limited or entirely missing in certain Android builds.

How do I fix Arabic text appearing in a Hindi format in my PDF?

This usually happens when the app defaults to regional rendering settings. Check your Android device's language and keyboard settings, ensure Arabic is set as the primary input, and keep your PDF app updated to the latest version to ensure proper font rendering.

Is there an alternative way to change my signature color on Android?

If your current PDF reader lacks this feature on Android, you can use alternative applications like WPS Office, which provides built-in tools to customize signature colors, stroke sizes, and text annotations directly on your mobile device.