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Batch images resizer for MacOS using Automator

Want to resize your images without any extra software installed on your Mac? Then this post is for you, we are using existing application named Automator to do the work for us.


Automator is an application developed by Apple for Mac OS X that implements point-and-click (or drag-and-drop) creation of workflows for automating repetitive tasks into batches for quicker alteration, thus saving time and effort over human intervention to manually change each file separately. Automator enables the repetition of tasks across a wide variety of programs, including the Finder, the Safari web browser, iCal, Address Book and others. It can also work with third-party applications such as Microsoft Office, Adobe Photoshop or Pixelmator. Automator was first released with Mac OS X Tiger


1. Run Automator from Application or Spotlight

2. Choose Workflow to start

Screen Shot 2011 11 13 at 12 47 05 PM

3. Select Files & Folders on the left-most panel, then choose Ask for Finder Items, drag into the right-most panel & check on the “Allow Multiple Selection” option

4. Select Files & Folders again, and choose Copy Finder  Items, drag into the right-most panel, this will make our original files untouched when doing resize operation

After step 3 & 4, this is what we have

Screen Shot 2011 11 13 at 11 33 02 AM

5.  Select Files & Folders again, and drag “Rename Finder Items” into the right-most panel, choose Add Text from the drop down box, enter a suffix for the file, for example “-resized”

Screen Shot 2011 11 13 at 11 33 57 AM

6.  Select Photos, and drag “Scale Images” into the right-most panel, and choose the size or percentage you want to resize

Screen Shot 2011 11 13 at 12 37 10 PM

7. You are almost ready now, press Run button (upper right) and you will be prompted to choose your images. After that, Automator will do the rest for us

Screen Shot 2011 11 13 at 12 45 10 PM

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1 Comment

  1. VeprIT

    Automator is certainly a good solution for some occasional resizing. There are also other nice free options, such as ImageMagic (command-line utility), Preview, etc.

    However, if this is a part of your job and you need a true flexibility, a special-purpose application will save you a lot of time, and offer much more opportunities. Many users chose our batch image resizer Resize Sense ( for its outstanding flexibility and convenience.

    Disclaimer: I am the developer. You better judge Resize Sense yourself. The introductory video on the product website will tell you exactly what is so special in Resize Sense. There is a free demo version.

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