How to Resize Images on a Mac 

Hey Everyone, Jeremy Hoffpauir here.  Today, I will show you how to resize images on a Mac using an Automator service.  I also show you how to resize multiple images at once.

Be sure to stop by my tools page for a complete list of the tools I use including electronics, computer, camera gear, and much more.

I write blog posts with many pictures quite often.  The pictures I place in my blog posts are often screen captures from one of my videos.

Since I record in 4k, the image size (3840×2160) of the screen captures are too large for my blog.

I like my photos to be 1920 x 1080, which is a nice HD image size.  I also use 1280×720 in certain scenarios.

When I first started my blog, I manually resized each picture using preview.  After 2 blog posts, I needed to find another way.

I decided to use an Automator service to resize images, which is  standard on Apple computers.

 

Step 1:  Open Automator and Create New Service

Open Automator by navigating to your applications folder and clicking ‘Automator”.

Highlight ‘Service’.

How to Resize Images On Mac-Automator-Service_1

 

Then, click ‘Choose’.

how to resize images on a mac-Automator-Service-Choose_2

 

Step 2:  Set Options

In the ‘Service Received Selected’ dropdown, choose ‘Image Files’.

 

how to resize images on a mac-Services-Received-Selected_3

 

Next, Under ‘Library’ in the far left pane choose ‘Files and Folders’.

 

how to resize images on a mac-Library-FilesFolders_4

 

Select ‘Get Specified Finder Items’ and drag it to the Automator workflow.

 

 

Then, choose ‘Photos’ under ‘Library’, choose ‘Scale Images’, and drag this to the Automator workflow.

 

how to resize images on a mac-Select-Photos-Scale-Images-Drag_7

 

 

 

Step 3:  Choose Desired Picture Size & Save

Next, change the size (pixels) under ‘Scale Images’ in the Automator workflow.  I recommend using 1920 or 1280.

Then, click ‘File’ and choose ‘Save’.  Rename the Workflow to the size chosen.  For example, the name can be ‘Resize 1920’ or ‘Resize 1280’.

 

how to resize images on a mac-change-1920_8

 

 

Step 4:  Resize Picture(s)

To resize a single picture, simply right-click on the picture, choose services, and select the appropriate service.

how to resize images on a Mac-rightclickservice

 

In order to resize multiple images at once, select the images by clicking the first image, hold down the shift key and select the last image.

Next, right-click, choose services, and select the desired service.

how to resize images on a mac-resize-multiple-photo_10

 

 

Conclusion

I hope this quick and easy tutorial on how to resize images on a Mac with Automator and how to resize multiple images at once provided you with value.

Let me know in the comments below your computer tips or workflows you use to make your life easier.

Be sure to checkout my home data storage tutorial to learn how to safely backup your photos, videos, and files.

 

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