How to Resize an Image:
The Ultimate Guide

Resizing images is a widespread practice, especially for bloggers and website owners. Websites and other digital platforms require images, amongst other aspects, to be complete. However, not just any picture works; you need the right image with the suitable resolution, vibrancy, and, more importantly, the correct size.

How do you ensure that you have the right-sized images for your project? Here, we inform you why resizing your images is ideal and how you can do it for both Windows and macOS operating systems.

Why should you resize your images?

Some images have very high megapixels. This increases the size of the image and may cause some inconveniences, especially on online platforms. By resizing your images, you open yourself up to the following possibilities:

Increased upload times

Large images take time to load, and this can be a turnoff for most online users. Additionally, some platforms such as social media pages require images of specific sizes- resizing your images makes it easier to fit them.

Enhanced navigation and display

Websites and blogs tend to play up if the images are too big. Themes go haywire, especially the ones containing sliders on the homepage.

Improves uniformity

Different images come in different sizes. Resizing these images ensures uniformity and maintenance of your website's identity.

How to resize your images

To ensure you are familiar with how to resize images on Mac and Windows 10, we will guide you on how to go about it on both OSs.

How to resize images on macOS

You can resize your image for macOS by navigating through the preview app and clicking on the Show Markup Toolbar. From there, choose the file that you want to adjust. A pop-up menu will be displayed; then, you can key in the values you are interested in for both the height and width and click on 'Fit Into.' Alternatively, you can opt to resize the picture using a percentage. This is ideal if you are unsure about the exact height and width to convert the photo into. To ensure the image doesn't lose its clarity, confirm that you have checked the 'Scale Proportionally' box.

How to resize images on Windows 10

The photos app will help you with this process when you are using the Windows 10 OS. Identify the picture you want to resize, double click it and on the top right corner, click on the three dots and choose to resize. A pop-up menu should appear, and this app will offer you three pre-set sizes. Choose one that suits you, and don't forget to check the maintain aspect ratio box. Click on save, and you will have resized your picture.

Resize your images using Parallels Toolbox

As you can see from the above, the process of resizing images using Windows 10 and Mac can get slightly confusing, especially for those who aren't tech-savvy. And that's why apps such as Parallels Toolbox exist. This software can be used on both Mac and Windows OS. It allows you to execute the action of resizing an image with a single click. And unlike the above inbuilt apps, you can also convert them into a different format. This tool features an option where you can drag a batch of photos and resize them at once. If you have been searching for a way to batch resize images on Windows 10, Parallels Toolbox has got you covered. You can also batch resize images on a Mac.


If you are on the hunt for an image resizer for Windows and Mac, Parallels Toolbox is software that will simplify this process for you. It is faster and easier to use than the in-built apps you get on Mac and Windows. Plus, it comes with other useful tools, such as a video converter, drive cleaner, audio recorder, and many more.