How to Change Photo Dimensions on Mac: A Simple One-Line Command

As a blogger, I often find myself struggling with large image files that slow down my blog's loading speed and upload time. Recently, while writing on my blog, I realized that some of my images were too big to upload on the online space. This problem was especially frustrating when uploading multiple images, as it would grind the page to a halt.

To overcome this issue, I turned to Sips, a command-line utility for image processing on Mac. Sips stands for Scriptable Image Processing System and is an acronym that allows you to perform various operations on images such as file conversion, resizing, rotation, cropping, and metadata analysis.

One of the most useful features of Sips is its ability to maintain image aspect ratio while resizing. This means that even if you resize your image to a smaller size, it will still retain its original proportions. To use this feature, simply type the following command in the terminal:

`-Z tells the utility to maintain image aspect ratio`

This command will resize all JPG images in the current folder to a specified size while maintaining their aspect ratio.

Another advantage of using Sips is that it allows you to batch process multiple images at once. This means that you can upload all your images to a server and then use Sips to resize them to a smaller size, reducing their total size and upload time.

For example, if you want to resize all JPG images in the current folder to 800 pixels while maintaining their aspect ratio, simply type the following command:

`sips -Z --resample-width 800 *.jpg`

This command will automatically resize all JPG images in the current folder to 800 pixels while maintaining their original proportions.

In conclusion, Sips is a powerful and easy-to-use utility for image processing on Mac. Its ability to maintain image aspect ratio and batch process multiple images makes it an essential tool for bloggers and photographers who need to quickly and easily resize their images. By using Sips, you can reduce the size of your images and upload time, making it easier to share your photos with others.

How to change photo dimensions on mac