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How to resize an image

There is a virtually endless number of tools to choose from when it comes to resizing pictures. Your Windows 10 desktop or Chromebook already has the vast majority of these handy tools, so you can edit your images quickly without paying for expensive editing software that hogs precious memory space.




15 minutes

What You Need

  • Windows desktop or Chromebook

  • Windows 10, Preview in MacOS, or Gallery in Chrome OS app

This guide will show you how you can resize an image using Photos in Windows 10, Preview in MacOS, and Gallery in Chrome OS. In case you’re not a fan of those apps, we’ll also provide instructions for a web-based client.

Further reading

how to resize an image photos app select

Windows 10

Step 1: Right-click on the image and select Open With followed by Photos.

Step 2: Click the Three-Dot button located in the app’s top-right corner.

how to resize an image photos save resized copy

Step 3: Select Resize on the drop-down menu.

Step 4: A pop-up window appears. Select one of the three preset sizes (shown on the left). Otherwise, click Define Custom Dimensions for a specific size. Another pop-up window appears (shown on the right).

Step 5: To keep the aspect ratio, click the box next to Maintain Aspect Ratio.

As you enter a number into one of the boxes, the other box will automatically adjust its number in proportion to the number you just entered. If the aspect ratio doesn’t matter, don’t check the box, and enter the numbers in both boxes.

Step 6: Click the purple Save Resized Copy button.

how to resize an image macos preview


Step 1: Right-click on the image and select Open. If Preview is not your default image viewer, select Open With followed by Preview instead.

Step 2: Select Tools on the menu bar.

Step 3: Select Adjust Size on the drop-down menu.

how to resize an image macos preview change size

Step 4: Enter the width and height information. You may need to switch the size type, like changing from inches to pixels, as shown above. Alternatively, you can select a preset size by clicking the arrows next to Fit Into.

Step 5: Click the blue OK button to confirm the new size.

how to resize an image macos preview

Step 6: To save the resized image, select File on the menu bar.

Step 7: Select Save.

how to resize an image gallery chrome os

Chrome OS

Step 1: Right-click on the image and select Open With Gallery on the pop-up menu. Alternatively, if Gallery is not your default image viewer, select Open With followed by Gallery.

Step 2: Click the Rescale button at the top.

Step 3: Enter the width and height. Click the Chain icon to unlock the aspect ratio if needed.

Step 4: Click the blue Save button. Alternatively, click the blue Down Arrow to select Save As if you don’t want to alter the original image.

how to crop a photo pixlr image

Web (Pixlr X)

Step 1: Head to Pixlr X.

Step 2: Click the blue Open Image button.

Step 3: Find the Properties button displayed on the left and click it.

Step 4: Open the drop-down menu and select Resize Image.

how to resize an image pixlr x apply changes

Step 5: Enter the width and height. Clicking the Constrain Proportions toggle will let you lock and unlock the aspect ratio.

Step 6: Click the blue Apply button.

Step 7: Find the blue Save button at the bottom and click it.

how to resize an image pixlr x download resized

Step 8: Enter the file name, select your preferred file type, and adjust quality as needed. Once everything is as you want it, click the blue Download button.

Editors' Recommendations

Kevin Parrish
Former Digital Trends Contributor
Kevin started taking PCs apart in the 90s when Quake was on the way and his PC lacked the required components. Since then…
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