How to Change Photo Dimensions on Mac

When it comes to publishing images online, resizing them can be a crucial step in ensuring they load quickly and efficiently. With many websites having maximum file size requirements, compressing and reducing the size of your image while retaining its quality is an important exercise. In this guide, we'll show you how to resize a photo on your Mac using Gimp.

Gimp, also known as the General Image Manipulation Program, is a free and open-source graphics software that is commonly cited as one of the best alternatives to Adobe's Photoshop. As a versatile piece of freeware available for both Windows and macOS, Gimp is used by amateurs and professionals alike for image retouching, editing, conversions, and of course, resizing.

Why Should You Resize a Photo Before Uploading It Online?

Before we dive into the steps, it's important to understand why resizing your photo before uploading it online is crucial. The problem with uploading high-resolution pictures is that their high pixel content makes loading the image an energy-intensive process for computer processors. This can lead not only to slow page speed but also to frustrating user experience as your site takes a long time to load, exasperating the user.

How to Resize a Photo on Your Mac Using Gimp

Step 1: Open Gimp and Select the Image

To get started, open Gimp on your Mac and select the image you want to resize. You can do this by going to 'File' > 'Open' and selecting the image from your computer.

Step 2: Resize the Image

Once you have opened the image, go to 'Image' > 'Scale' and enter the new dimensions for your image in the 'Width' and 'Height' fields. You can also select a preset size by clicking on the drop-down menu next to each field.

Step 3: Save the Resized Image

After resizing your image, click on 'File' > 'Save As' and choose a location to save your resized image. Make sure to select a format that is suitable for online use, such as JPEG or PNG.

Resizing your photos before uploading them online can make all the difference in terms of page speed and user experience. By following these simple steps using Gimp on your Mac, you can ensure that your images are optimized for online use and load quickly and efficiently.

How to change photo dimensions on mac