December 15th, 2015

How to change the font size in Signal for your display and messages on a computer or mobile device

Adult man with glasses in office reading text messages10'000 Hours/Getty Images

Summary List Placement

Signal is the encrypted messaging app that's available for desktop and mobile. For those who regularly send sensitive communications or just want a little extra security, the app is an increasingly popular option for texting. 

As part of your Signal experience, you can customize the font size to better suit its readability. How you change the font size will depend on where you're using the app. 

Signal has in-app options for adjusting font size on Android phones, but when using your iPhone or the desktop app, you'll have to change the font size through your device's settings. 

On the desktop version of Signal, there's no setting to change the font size, but you can zoom in and out to make the text more readable. On an iPhone, the Signal app will automatically match its font size to the size you have already indicated in your iPhone's Settings. 

Here's how to change the font in Signal on desktop, Android, and iPhone.

How to change font size in Signal on a PC

1. Log in to the Signal desktop app. 

2. Click on a conversation thread. 

How_to_change_font_in_Signal_ _1Chrissy Montelli/Business Insider

3. To Zoom in and reduce the font size, press and hold "Ctrl" followed by "=". 

How_to_change_font_in_Signal_ _2Chrissy Montelli/Business Insider4. To zoom out and reduce the font size, press and hold "Ctrl" followed by "-"

5. To restore your screen's zoom level to its default, press the "Ctrl" key, followed by "0" (zero).

How to change font size in Signal on a Mac

1. Log in to the Signal desktop app. 

2. Click on a conversation thread. 

3. To Zoom in and reduce the font size, press and hold the "Command" key followed by "=". 

4. To zoom out and reduce the font size, press and hold the "Command" key followed by "-" 

How_to_change_font_in_Signal_ _3Chrissy Montelli/Business Insider

5. To restore your screen's zoom level to its default, press the "Command" key, followed by "0" (zero).

How to change font size in Signal on Android 

1. Open the Signal app. 

2. Tap on your profile icon. 

How to change font in Signal   4Chrissy Montelli/Business Insider

3. Tap on "Chats and media." 

How_to_change_font_in_Signal_ _5Chrissy Montelli/Business Insider

4. Tap on "Message font size." 

How_to_change_font_in_Signal_ _6Chrissy Montelli/Business Insider

5. Tap on the font size you want to change to. 

How_to_change_font_in_Signal_ _7Chrissy Montelli/Business Insider

6. Tap outside the back arrow twice until you're viewing your message list. 

7. Tap on a conversation to read messages in the new font size. 

How to change font in Signal   9Chrissy Montelli/Business Insider

How to change font size in Signal on iPhone

1. Open your Settings app. 

2. Tap "Display & Brightness." 

How to change font size on Signal 10.PNGAbbey White/Business Insider

3. Select "Text Size." 

4. Tap on the size slider and move your finger to the left to decrease and right to increase the font size. 

How_to_change_font_size_on_Signal_11Abbey White/Business Insider

5. Open the Signal app. 

6. Choose a conversation thread. 

7. Confirm that the font size is right for you. 

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