Where to find font size controls in most Mac apps

Most Mac apps let you change font size through the Format menu or a preferences window. Open the app, then look for Format in the menu bar at the top of your screen. Click it and look for options like "Font," "Text," or "Size." Some apps also hide this setting in Preferences (usually under the app name in the menu bar) under a "Display" or "Appearance" tab.

The exact path varies by app. Mail, for example, uses Format > Font > Show Fonts. Word uses Home > Font Size. Notes uses Format > Font > Size. If you cannot find it in Format or Preferences, check the View menu — some apps put text size there instead.

If you are working with text you have already typed, you can also select the text first, then change the size. Highlight the words with your mouse or trackpad, then go to Format and choose a new size. The change applies only to what you selected.

Key Takeaways

  • Most Mac apps have font size controls in the Format menu or Preferences window, though the exact location depends on which app you are using.
  • You can change the default font size for new text, or select existing text and resize only that portion.
  • Some apps let you zoom the entire window instead of changing font size, which affects everything on screen at once.
  • System-wide text size changes in Mac settings affect some apps but not others, depending on how each app was built.

Using the Format menu to change font size

Open the app and click Format in the menu bar. Look for an option that says "Font," "Text," or "Size." Click it to see a list of available sizes, usually ranging from 8 to 72 points or larger. Select the size you want.

If you want to change the size of text you have already written, select it first. Click and drag your mouse across the words, or double-click a word and then hold Shift while clicking to extend the selection. Once the text is highlighted in blue, go to Format and choose your new size. The change takes effect when ready.

Some apps show a small font size box in the toolbar at the top of the window instead of hiding it in a menu. Look for a number (like "12" or "14") with up and down arrows next to it. Click the number to type a custom size, or click the arrows to increase or decrease by one point at a time.

Changing default font size in app preferences

If you want every new document in an app to open with a larger or smaller font, change the default in Preferences. Click the app name in the menu bar (for example, "Mail" or "Notes"), then select Preferences or Settings.

Look for a tab labeled "Display," "Appearance," "Fonts," or "Text." You should see an option to set the default font size. Choose your preferred size and close the window. New documents will now open with that size, though existing documents usually keep their original size.

Not all apps store this setting in the same place. Some put it under "General" instead. If you cannot find it after checking the obvious tabs, try searching the Preferences window — many modern Mac apps have a search box at the top that lets you type "font" or "size" to jump straight to the setting.

Using zoom instead of changing font size

Some apps do not have a dedicated font size control. Instead, they offer a zoom feature that enlarges everything on the screen at once — text, images, buttons, and all. This is different from changing font size because it scales the entire window, not just the words.

To zoom in most Mac apps, hold down the Command key (the key with the Apple logo) and press the Plus key to make things larger. Press Command and Minus to make things smaller. You can also hold Command and scroll your trackpad up or down. Each press or scroll increases or decreases the zoom by a small amount.

To reset zoom back to normal (100 percent), hold Command and press 0 (zero). Zoom settings usually explore only to the current window or document, so if you open a new document, it may start at the default zoom level again.

Changing text size system-wide on your Mac

Your Mac has a system-wide text size setting that affects some apps but not all. Go to System Settings (or System Preferences on older Macs), then click Accessibility in the sidebar. Look for Display and click it.

You should see a slider labeled "Text size" or "Font size." Drag it to the right to make text larger across your Mac, or to the left to make it smaller. This affects apps like Mail, Calendar, and Reminders, but not all third-party apps. Some apps ignore this setting because they manage their own text size independently.

If you want even larger text, look for an option called Larger Accessibility Sizes in the same Display section. This unlocks much larger sizes for people who need them. After you change the setting, you may need to close and reopen an app for the change to take effect.

Common mistakes and how to avoid them

The most common mistake is looking in the wrong menu. If Format does not have what you need, check View and Preferences before giving up. Different apps organize menus differently, and there is no single standard.

Another mistake is changing the zoom level when you meant to change font size. Zoom affects the whole window and can make buttons and menus hard to use. If you accidentally zoomed and everything looks too big or too small, use Command-0 to reset to 100 percent.

Do not assume that changing the system-wide text size in Accessibility will fix every app. Some apps do not respond to that setting. If an app ignores your system setting, look for font size controls inside the app itself, or contact the app maker to ask if they support system text size settings.

Frequently Asked Questions

Why does my font size change not stick when I close the app?

Most apps remember the font size you set, but some do not. If your changes disappear, the app may not be designed to save that preference. Try changing the default font size in Preferences instead of just changing one document. If that does not work, the app may not support saving font size at all.

Can I change font size in web browsers like Safari?

Yes. In Safari, hold Command and press Plus to zoom in, or Command and Minus to zoom out. You can also go to Safari > Settings > Accessibility and turn on "Never use smaller than" to set a minimum font size for all websites. This works on most websites, though some may override your choice.

What if an app does not have a Format menu?

Check the View menu or the app name menu (at the top left of the menu bar). Some apps put font controls in Preferences under Display or Appearance instead. If you still cannot find it, try right-clicking on the text itself — some apps show a font menu in the context menu that appears.

Does changing font size in one app affect other apps?

No. Font size changes inside an app explore only to that app. If you want to change text size across multiple apps, use the system-wide setting in System Settings > Accessibility > Display, but keep in mind that not all apps respond to it.

Can I set different font sizes for different types of text in the same document?

Yes. Select the text you want to change, then go to Format and choose a new size. You can make headings larger and body text smaller in the same document. Each selection keeps its own size independently.