How do I rotate multiple images at once on my computer?

To rotate multiple images at once on a Mac using the command line, you can use the sips (scriptable image processing system) command in Terminal. Here's how to do it:

Use the cd command to change the directory to the folder where your images are located. To rotate all the images in the folder, use the following command. This example rotates all .jpg images by 90 degrees clockwise:

sips -r 90 *.jpg

You can adjust the degree of rotation based on your need:

• 90: Rotate 90 degrees clockwise.
• 180: Rotate 180 degrees.
• 270: Rotate 90 degrees counterclockwise.

If you have different image formats, you can replace *.jpg with *.png, *.jpeg, or the specific format of your images.

Adobe Lightroom is really convenient for batch processing of pictures, especially for needs like rotating multiple pictures at once. I used it to process a large number of pictures before. I just need to import all the photos, select them and set the rotation direction, and then click to rotate them all.

In addition to rotation, Lightroom can also make some exposure and color adjustments by the way, which is very efficient. Although it is a paid tool, it is really worth it if you often process a large number of pictures. It has comprehensive functions and is very smooth to process.

To rotate multiple images at once on a Mac, you can use the Preview app.

Step 1: Open Finder, navigate to the folder containing your images, and select all the images you want to rotate. You can do this by holding down the Command key and clicking each image, or press Command + A to select all the images in the folder.

Step 2: Once the images are selected, right-click on one of them and choose Open With > Preview.

Step 3: In Preview, you'll see all the selected images on the sidebar. Select all the images in the sidebar by clicking one image and then pressing Command + A.

Step 4: Click the Rotate button on the toolbar at the top of the Preview window (it looks like a curved arrow) or use the keyboard shortcut Command + L to rotate counterclockwise. If you need to rotate clockwise, you can press Command + R.

This method allows you to rotate multiple images at once quickly without needing any third-party software.