I am frequently presented with the task of resizing images (lots of them) to a square and then saving them with PhotoShop. For example, if an image is 400x200 then I would n
Batch resize images in Mac OS X
You can easily batch resize groups of images within Mac OS X by using the included Preview app, there is no need for any additional downloads or expensive photo editing applications, only Preview, which is free with your Mac! Here’s how to do it:
1. Select all the images you want resized and open them within Preview
2. From Preview, select the images that you want to batch resize from the drawer (Command+A will select them all)
3. Now, go to the menu labeled Tools, and then Adjust Size
4. Enter a value for what you want the new width and height to be
5. Next, navigate to the File menu and click Save All
6. All the images you selected are now resized!
This works in Preview that is included in virtually all versions of Mac OS X, happy batch resizing!