The fastest way to zoom in depends on what you are looking at

On most computers, you can zoom in by holding Ctrl (Windows) or Command (Mac) and pressing the plus sign (+) key. This works in web browsers, documents, spreadsheets, and many other programs. Each press makes the content larger. To zoom back out, use the same keys with the minus sign (−) instead.

If your keyboard does not have a separate plus key, you can hold Ctrl or Command and scroll your mouse wheel up to zoom in, or scroll down to zoom out. On a trackpad, hold Ctrl or Command and scroll up with two fingers to zoom in.

These shortcuts work in almost every program you will use — your web browser, email, photos, and text editors. The zoom level stays the same until you change it again or close the program.

Key Takeaways

  • Hold Ctrl (Windows) or Command (Mac) and press the plus key to zoom in on any document, webpage, or image.
  • Use Ctrl or Command with the minus key to zoom back out to normal size.
  • Ctrl or Command plus your mouse wheel scroll works if your keyboard lacks a dedicated plus key.
  • Zoom level resets when you close the program, unless the program saves your preference.
  • If keyboard shortcuts do not work, check the View menu in your program for a zoom option.

Zooming in your web browser

Web browsers — Chrome, Firefox, Safari, and Edge — all respond to the Ctrl/Command plus-key shortcut. When you zoom in on a webpage, the text, images, and buttons all grow together. The page may become wider than your screen, and you will need to scroll left and right to see everything.

Your browser remembers the zoom level for each website. If you zoom in on a news site to 150 percent, that site will stay at 150 percent the next time you visit it. Other websites keep their own zoom settings separately.

To reset a page to its normal size, hold Ctrl or Command and press 0 (zero). This is faster than zooming out one step at a time.

Zooming in documents and spreadsheets

Microsoft Word, Google Docs, Excel, and Google Sheets all use the same Ctrl/Command plus-key shortcut. In these programs, zoom changes only the view on your screen — it does not change the actual size of the text when you print or share the document.

You can also find a zoom slider in the bottom right corner of most document programs. Click and drag it to the right to zoom in, or to the left to zoom out. This slider shows your current zoom percentage (such as 100 percent or 125 percent) and lets you jump to a specific level.

Some programs let you zoom to fit the whole page on your screen at once. In Word and Google Docs, look for a View menu option called "Fit to page" or "Whole page" if you want to see an entire document at a glance.

Zooming in on images and photos

Image viewers and photo programs respond to Ctrl/Command plus the plus key, just like documents. Many also let you zoom by double-clicking the image — the first click zooms in, the second zooms back out.

Some programs add extra zoom tools. In Windows Photos, you can use your mouse wheel to zoom in and out without holding any keys. In Preview on Mac, you can pinch your trackpad with two fingers to zoom in or out smoothly.

If you are viewing an image in your web browser, the browser zoom shortcut works the same way — Ctrl or Command plus the plus key will enlarge the image.

When keyboard shortcuts do not work

If Ctrl/Command plus the plus key does not zoom in, the program may not support that shortcut. Look for a View menu at the top of the window. Click it and look for an option labeled "Zoom", "Zoom In", or "Magnify". Click that option to open a zoom menu or dialog box.

Some programs use different shortcuts. Adobe Reader uses Ctrl/Command and the right bracket key (]) to zoom in. Photoshop uses Ctrl/Command and the plus key, but only if you are not typing in a text field. If you are editing text, the shortcut may not work until you click outside the text box.

If a program has no zoom feature at all, you can use your operating system's built-in magnifier tool instead. On Windows, press the Windows key and the plus key together to open the Magnifier, which enlarges everything on your screen. On Mac, go to System Preferences, choose Accessibility, and turn on Zoom.

Using your operating system's magnifier

Windows and Mac both include a magnifier tool that zooms in on your entire screen, not just one program. This is useful if you have trouble reading text across multiple programs or if a specific program does not have its own zoom feature.

On Windows 10 and 11, press the Windows key and the plus key together to turn on Magnifier. Press them again to zoom in further. Press the Windows key and minus key to zoom out. Press Windows key and Escape to turn off Magnifier.

On Mac, open System Preferences, click Accessibility, select Zoom, and check the box next to "Use keyboard shortcuts to zoom". Then hold Option and Command and press the up arrow to zoom in, or the down arrow to zoom out.

Zoom settings that stick around

Most programs remember your zoom level between sessions. If you zoom a webpage to 125 percent, it stays at 125 percent the next time you open that page. If you zoom a document to 150 percent and close it, the document will open at 150 percent the next time you load it.

You can also set a default zoom level for all new documents in some programs. In Microsoft Word, zoom to your preferred level, then go to File, Options, and look for a Display or View section. Some programs let you save this as your default.

If you want to reset everything to normal, use Ctrl/Command and 0 (zero) to return to 100 percent zoom. This works in almost every program and resets just that one document or webpage, not your entire computer.

Frequently Asked Questions

Why does zooming in make some websites look broken?

Some websites are designed poorly and do not adjust their layout when you zoom. Text may overlap buttons, or images may stretch oddly. This is a problem with the website, not your computer. Try zooming to 110 or 125 percent instead of much higher levels, or use your browser's reader mode if it has one.

Does zooming in make my computer slower?

No. Zooming in only changes what you see on your screen. It does not affect how fast your computer runs or how much memory programs use. You can zoom in and out as much as you want without any performance cost.

Can I zoom in on my entire screen, not just one program?

Yes. Use your operating system's magnifier tool. On Windows, press Windows key plus the plus key. On Mac, go to System Preferences, Accessibility, and turn on Zoom. This magnifies everything you see, across all programs.

What if I zoom in and forget to zoom back out?

Hold Ctrl or Command and press 0 (zero) to when ready return to 100 percent zoom. This works in almost every program. If you closed the program and reopened it, it will remember your zoom level from before you closed it.

Does zooming in on a document change how it prints?

No. Zoom only changes what you see on your screen. When you print a document, it prints at its actual size, not at your zoomed-in size. The zoom setting does not travel with the document when you share it with someone else.