How to Make File Smaller on Mac: A Step-by-Step Guide

Choose File >, Reduce File Size (from the File menu at the top of the screen). Select the adjustments you want to make: Scale down large images: Images are scaled to the resolution used in the document while preserving visual quality.

Have you ever tried to send a picture through email but found that it was too large? Or maybe you’re a YouTuber looking to use an image as a thumbnail, but the size restrictions are preventing you from doing so. Luckily, if you’re using Mac OS Monterey, there’s a simple solution to this problem.

First, let’s take a look at the picture you want to resize. In this example, we have a beautiful picture with a lot of detail, but the total size is 4.7 megabytes. While this isn’t incredibly heavy, it’s still a bit much for email and other uses.

To reduce the size of the image, start by right-clicking on the picture. From there, select “Quick Actions” and then “Convert Image.” You’ll be given the option to change the file type to PNG, but we’ll leave it as a JPEG for now.

Next, you’ll see the available sizes for the image – actual size, large, medium, and small. Choose the size that works best for your needs. In this case, we’ll select the medium size, which is 116 kilobytes.

Once you’ve selected the desired size, click “Convert to JPEG.” The image will now be resized, and you can open it to verify the size reduction. In this example, the image went from 4.7 megabytes to 116 kilobytes – a significant reduction in size!

The best part is that you can do this with multiple images at once. Simply select all the images you want to resize, right-click, and choose “Quick Actions” > “Convert Image.” From there, select the desired size, and the images will be resized in one quick step.

While this feature is incredibly useful, it’s important to note that it’s only available on Mac OS Monterey. If you’re running an older version of the operating system, you won’t be able to take advantage of this feature.

In conclusion, reducing the size of images on your Mac is a simple process that can be done in just a few clicks. Whether you’re sending pictures through email or using them for professional purposes like YouTube thumbnails, this feature will come in handy. So, go ahead and give it a try!


How do I reduce the size of a PDF File Mac?
In the Preview app on your Mac, open the PDF that you want to compress. Choose File >, Export. (Don't choose Export as PDF.) Click the Quartz Filter pop-up menu, then choose Reduce File Size.
How can I lower the MB of a picture on Mac?
Reduce an image's file size In the Preview app on your Mac, open the file you want to change. Choose Tools >, Adjust Size, then select “Resample image.” Enter a smaller value in the Resolution field.
How do I reduce the file size of a PDF?
Open a PDF in Acrobat.Choose File >, Reduce File Size or Compress PDF. Note: ... Choose the location to save the file and click Save. Acrobat displays a message showing the successful reduction in PDF size.
How do I reduce the size of a File?
Ways to Reduce File Size. As you assemble your thesis, the size of the document may become increasingly difficult to manage. ... Use Styles to Format Your Thesis. ... Insert Images instead of Using Copy + Paste. ... Compress Images. ... Save Images at a Lower Resolution. ... Crop White Space from around Images. ... Reduce the Size of Your PDF File.