Step 1: Open the file you want to change via Preview app. Through Preview, you can reduce the file size of almost any photo. Preview is an application that is built into every Mac. 5 Ways to Compress Photos on Mac Method 1: Using Preview to Compress One Photo
So, how do you safely compress your photos without losing image quality? Let’s find out. Some people turn to online image optimizer websites to reduce the size of an image, but you can never be sure that the website is safe and that they will handle your image responsibly. Therefore, if you intend to enlarge a photo or print it at a later stage, do not compress it. More often than not, the quality of the image is compromised when reducing the file size because you lose some photo data. PNGs are lossless and it is good for line-art and images with more text and fewer colors. JPEGs are lossy and good for photos and realistic images. Lossless compression means that the image quality is retained, while lossy compression means you lose some of the photo data.Ĭhanging the file type can affect the image quality and compression, so make sure you know which file type to use. There are several important things you should know about compressing photos.įirstly, there are two types of compression: lossless and lossy compression.
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In order to store the photos on my Mac, I would have to compress them in order to free up some precious disk storage. Maybe I’m lazy or sentimental, but I don’t delete them, so they take up a lot of space. If you’re like me, you probably have thousands of photos in your phone gallery or on your computer. In the digital age, taking photos has become part of the standard for any hangout.
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