Mac OS batch resize images

Thu, 03 Sep 2020 19:22:44 +0200

You can easily batch resize groups of images within Mac OS by using the included Preview app, that is, taking a group of pictures set at one or various resolutions, and collectively resize them all together in a group to a new resolution.

Select all the images you want resized in the Finder, and then open them within the Preview app
From Preview, select all of the images that you want to batch resize from the left-side thumbnail drawer (command + a will select them all)
Now, go to the menu labeled “Tools”, and then choose “Adjust Size”
Enter a value for what you want the new width and height to be
Next, navigate to the “File” menu and click “Save All” or, to save a new version that is resized, choose “Export Selected Images…” or “Save As”

Macos on Janik von Rotz

Mac OS batch resize images