Step 9: Find an image file in Finder, right click, select Services, and choose the name of the service that you just created. Step 8: Go to File → Save, and give the service a name in the Save service as box. This will create a 1920 x 1080 image since I’m working with 16:9 input. In my circumstances, I choose 1920, since I’m resizing 3840 x 2160 files. Step 7: In the Scale Images action panel, insert the width that you’d like to resize to. I choose not to do this, but if having backups of your images prior to resizing is important to you, it’s something to consider. You are almost ready now, press Run button (upper right) and you will be prompted to choose your images.Step 6: Automator will prompt you to add an add a Copy Finder Items action to preserve original files in a separate folder. Select Photos, and drag “Scale Images” into the right-most panel, and choose the size or percentage you want to resizeħ. 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”Ħ. 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 operationĥ. 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” optionĤ. Run Automator from Application or Spotlightģ. Automator was first released with Mac OS X Tigerġ. It can also work with third-party applications such as Microsoft Office, Adobe Photoshop or Pixelmator. Automator enables the repetition of tasks across a wide variety of programs, including the Finder, the Safari web browser, iCal, Address Book and others. 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.Īutomator 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 mac resize image by height