You can change your font size in Signal on the secure-messaging platform's desktop, Android, and iPhone apps.

How to increase the font size on a Mac by scaling your display 1. Click the Apple icon in the top-left corner of the screen and select System Preferences. Click on System Preferences.

If you find that a text in Android is either too big or too small, don't fret, it's a guide to changing the font size.

Learn how to customize the default font, color, size in Microsoft Outlook desktop client. You can easily increase the size if it is too small.